Seal of Prophets! Is muhammad a Prophet of G-D?

Test for Prophet of G-D:
Muslims claims that, Muhammad was for told in the Deuteronomy 18:18   "18 I will raise them up a Prophet from among their brethren, like unto thee, and will put my words in his mouth; and he shall speak unto them all that I shall command him.",   Then Musalems should read the continuation in context, and also prove the test of authenticity for a prophet, in respective with Muhammad.
Deuteronomy 18:20-22: "²⁰ But the prophet, which shall presume to speak a word in my name, which I have not commanded him to speak, or that shall speak in the name of other gods, even that prophet shall die.

²¹ And if thou say in thine heart, How shall we know the word which the Lord hath not spoken?
²² When a prophet speaketh in the name of the Lord, if the thing follow not, nor come to pass, that is the thing which the Lord hath not spoken, but the prophet hath spoken it presumptuously: thou shalt not be afraid of him."

1) Spoken In the name of other gods & killed by followers:

The Satanic Verses, not from Christian or Jewish sources, but from early Muslim writings. Accounts of the Satanic Verses are given in a number of early sources, including: (1) Ibn Ishaq, (2) Wakidi, (3) Ibn Sa’d, (4) al-Tabari, (5) Ibn Abi Hatim, (6) Ibn al-Mundhir, (7) Ibn Mardauyah, (8) Musa ibn 'Uqba, and (9) Abu Ma'shar. 
According to the great Muslim scholar Ibn Hajar, three chains of transmission (isnad) in these accounts "satisfy the conditions requisite for an authentic report." Moreover, Sahih al-Bukhari, Islam’s most trusted source on the life of Muhammad, gives indirect confirmation of the event (According to Bukhari, The Prophet performed a prostration when he finished reciting Surat an-Najm [Surah 53], and all the Muslims and Al-Mushrikun (polytheists, pagans, idolaters, and disbelievers in the Oneness of Allah and in His Messenger Muhammad) and jinn and human beings prostrated along with him). 
Beyond this, certain verses of the Qur’an (17:73-5 and 22:52-3) were revealed in response to Muhammad’s embarrassing lapse into polytheism. 

According to al-Tabari,
When the Messenger of God saw how his tribe turned their backs on him and as grieved to see them shunning the message he had brought to them from God, he longed in his soul that something would come to him from God which would reconcile him with his tribe. With his love for his tribe and his eagerness for their welfare it would have delighted him if some of the difficulties which they made for him could have been smoothed out, and he debated within himself and fervently desired such an outcome. Then God revealed:

By the Star when it sets, your comrade does not err, nor is he deceived; nor does he speak out of (his own) desire . . .

and when he came to the words:

Have you thought upon al-Lat and al-‘Uzza and Manat, the third, the other?

Satan cast on his tongue, because of his inner debates and what he desired to bring to his people, the words:

These are the high-flying cranes; verily their intercession is accepted with approval. (Al-Tabari, p. 108)

The polytheists were delighted that Muhammad had at last approved of their gods. To return the kindness, they "prostrated themselves because of the reference to their gods which they had heard, so that there was no one in the mosque, believer or unbeliever, who did not prostrate himself" (p. 109).

But later this was cancelled by Muhammad, once after his need of the Tribes to win the war. Then he revised this with the words, Muhammad lamented: "I have fabricated things against God and have imputed to Him words which He has not spoken" (p. 111). Put the following words to the mouth of Gabriel and added, "And We did not send before you any apostle or prophet, but when he desired, the Shaitan made a suggestion respecting his desire; but Allah annuls that which the Shaitan casts, then does Allah establish His communications, and Allah is Knowing, Wise." (Surah 22:52)
Thus Muhammad accepted that, he spoke the words against or which is not from G-D. 

'prophet shall die', Muhammad was poisoned by a slave follower and died with agony. Muhammad died in 632 A.D.  He died as a result of being poisoned following his attack upon and conquest of the Jewish settlement of Khaibar, 3 years later by after effects. 

Refer from Bukhari's Hadith 3.786: Narrated Anas bin Malik:  A Jewess brought a poisoned (cooked) sheep for the Prophet who ate from it. She was brought to the Prophet and he was asked, "Shall we kill her?" He said, "No."  I continued to see the effect of the poison on the palate of the mouth of Allah's Apostle. 

But Muhammad didn't ate it completely, He saw his fellow,Bishr (son of Umm Bishr) dying, who ate the same food. Even though Muhammad started bleeding in mouth; Refer From Ibn Sa'd page 249: Verily a Jewish woman presented poisoned (meat of) a she goat to the apostle of Allah.  He took a piece form it, put it into his mouth, chewed it and threw it away.  Then he said to the Companions:  "Halt!  Verily, its leg tells me that it is poisoned."  Then he sent for the Jewish woman and asked her;  "What induced you to do what you have done?"  She replied, "I wanted to know if you are true; in that case Allah will surely inform you, and if you are a liar I shall relieve the people of you."

Muhammad & Spirit(Muhammad called Gabriel) Prayed for Healing but, his allah never answered. From Ibn Sa'd page 265: The apostle of Allah fell ill and he i.e. Gabriel, chanted on him, saying, "In the name of Allah I chant on to ward off from you every thing that harms you and (to ward off you) against every envier and from every evil eye and Allah will heal you." But Heal doesn't came, Usage of evil eye, states that He was also have superstitions in negative way! He even thought the poisoning by satanic curse, also he consumed medicines (In some haddits says even his fellow beings also consumed medicines for Muhammad's wellness), to avoid the curse of satanic poisoning.

Agony with the poison consumed unknowingly, [Bukhari's Hadith 5.713:] Narrated 'Aisha: The Prophet in his ailment in which he died, used to say, "O 'Aisha! I still feel the pain caused by the food I ate at Khaibar, and at this time, I feel as if my aorta is being cut from that poison."

Cursing Jews for Poisoning him, From Ibn Sa'd page 322: When the last moment of the prophet was near, he used to draw a sheet over his face; but when he felt uneasy, he removed it from his face and said:  "Allah's damnation be on the Jews and the Christians who made the graves of their prophets objects of worship."

• If Muhammad were a real prophet of God, why didn't he catch the poison before he ate it?
• If you believe that it was God's will for Muhammad to have eaten the poison, along with Bishr, why then did Muhammad try to get well? Even Gabriel prayed for Muhammad to get better, but Allah didn't answer that prayer either. Also he never mentioned any where how he will die.
• Why did Gabriel not know the will of Allah? Why would Gabriel pray if Allah had decided death?
• Why, when just before his death, did Muhammad have to utter a curse upon the Christians and the Jews? Wouldn't it have been better for Muhammad to pray for guidance for them? This also sounds like a jealous, bitter prayer to Allah. Muhammad prayed for and uttered curses instead of asking Allah to guide people.

3) Failed Prophesies of Muhammad:  

Muhammad hardly done prophesies. Even though many are so fallible and to called as prophesies. Major ones are related to near by ongoing wars and predictions of winning against the enemies.[Every leader should provide an inspiration to the followers, in those situations, so most of the kings and racists leaders done this, there for they are also to be called as prophets, according to Islamic Ideology. Even Hitler was also a prophet]

1) According to the narratives of al-Bukhari, Muhammad announced that everyone would be dead within a hundred years:
Sahih al-Bukhari, Volume 1, Book 3, Number 116:Narrated 'Abdullah bin 'Umar:

Once the Prophet led us in the 'Isha' prayer during the last days of his life and after finishing it (the prayer) (with Taslim) he said: "Do you realize (the importance of) this night? Nobody present on the surface of the earth tonight will be living after the completion of one hundred years from this night."

Sahih al-Bukhari, Volume 1, Book 10, Number 539:Narrated Abdullah:

"One night Allah's Apostle led us in the 'Isha' prayer and that is the one called Al-'Atma by the people. After the completion of the prayer, he faced us and said, ‘Do you know the importance of this night? Nobody present on the surface of the earth tonight will be living after one hundred years from this night.’" (See Hadith No. 575).

Nearly fourteen centuries have gone by and there continue to be human beings alive all around the earth! This particular hadith was so troubling that another narration tries to explain it away by arguing that Muhammad really meant that none of his generation would be alive in a hundred years:
Sahih al-Bukhari, Volume 1, Book 10, Number 575:Narrated 'Abdullah bin 'Umar:

The Prophet prayed one of the 'lsha' prayer in his last days and after finishing it with Taslim, he stood up and said, "Do you realize (the importance of) this night? Nobody present on the surface of the earth tonight would be living after the completion of one hundred years from this night."
The people made a mistake in grasping the meaning of this statement of Allah's Apostle and they indulged in those things which are said about these narrators (i.e. some said that the Day of Resurrection will be established after 100 years etc.) But the Prophet said, "Nobody present on the surface of earth tonight would be living after the completion of 100 years from this night"; he meant, "When that century (people of that century) would pass away."

There are several points to note from this specific report. First, note the candid admission of the narrator that Muslims understood from Muhammad’s words that the world was going to end in a hundred years (Never happened and now its more than 14 centuries). This provides corroborating evidence that the plain meaning of Muhammad’s so-called prophecy was that the last day would occur within a hundred years (in 7-8 C AD). Thus the thing follow not, nor come to pass!


2) Erroneous Prophesies, cannot be consider as prophecy
* Sura 48:27 From hadiths, Author Mawdudi, states about the Prophesy done by Muhammad about entering Mecca for rituals in the CURRENT YEAR.  Unfortunately Muhammad and nearly 1400 followers driven away by quraish tribe while try to enter Mecca for rituals. While his followers are upset, he SWALLOWED, the word CURRENT YEAR, and inspired people by saying pilgrimage will be done. Then Muhammad done a treaty with pagans for 10 years for pilgrimage, which inversely effect true believers. 
Treaty states by author Mawdudi, "WHAT TROUBLED THE MUSLIMS MOST IN THIS TREATY, WAS THE CONDITION ABOUT THE FUGITIVES FROM MAKKAH AND MADINAH, THAT THE FORMER WOULD BE RETURNED AND THE LATTER WOULD NOT BE RETURNED". 

Also Refer  Sahih al-Bukhari, Volume 3, Book 50, Number 891: 
"Then Suhail said, 'We also stipulate that you should return to us whoever comes to you from us, even if he embraced your religion.' The Muslims said, 'Glorified be Allah! How will such a person be returned to the pagans after he has become a Muslim?'". Which includes in treaty that who ever convert to Muslim and came as refuge towards Muhammad shall be return to quarish tribe, signed by Muhammad in the name of ALLAH & MUHAMMAD BIN ABDHULLAH APOSTLE OF ALLAH. (But later Muhammad broke the treaty which he had signed in Allah's name, Would Prophet Moses will let true believers to Pagans? Will Prophet Moses will break a treaty done in G-D's name? NO Never). Muhammad aim was only to full fill his wish on entering Mecca, he didn't cared about true believers, he let them to hands of pagans. Thus he entered mecca for Rituals on next year.

 Thus the prophecy done by Muhammad was " Muhammad about entering Mecca for rituals in the CURRENT YEAR"- Failed to full fill. He altered as "Will Entering Mecca for rituals", Can we call this as a prophecy? Never, It will count as just a inspirational quote from a leader. 

Conclusion:
FAILED PROPHET-HOOD OF MUHAMMAD !
We already saw from old testament is, Messiah as the seal of prophets from G-D. Even though Muhammad in quran says Isa mesih (See quran 3:45), is the messiah and self proclaim that Muhammad is seal of prophets from G-D, which contradicts there itself.
Also from the above, test for a Great PROPHET failed by Muhammad miserably, states authenticity of his prophetic claims. It will be so ashamed to compare Muhammad with a great prophet like MOSES!

Courtesy: Includes , david wood (Is Muhammad a prophet?), silas (Death of Muhammad), Shamoun (Muhammad's False Prophecies),