Muhammad proclaimed that Allah is the first and the last, an expression which speaks to the uncreated, timeless existence of God:
He is the First and the Last, the Outward and the Inward; He has knowledge of everything. S. 57:3 Arberry
Muhammad also taught that the most vile human being in the sight of his god is the one who claims to be the king of kings, obviously because only God can make such an assertion:
CXIV. The name which Allah most hates
5852. Al-A’raj related from Abu Hurayra that the Messenger of Allah said, “The most ignoble name in the sight of Allah on the Day of Rising will be a man who calls himself ‘the king of kings’.”
5853. Al-A’raj related from Abu Hurayra, “The most ignoble name in the sight of Allah.” Sufyan said another time, “The most ignoble of names in the sight of Allah on the Day of Rising will be a man calling himself ‘the king of kings’.” Sufyan said that someone else says that it means “Shahan Shah (King of Kings in Persian).” (Aisha Bewley, The Sahih Collection of Al-Bukhari, Chapter 81. The Book of Adab* (Good Manners) https://bewley.virtualave.net/bukhari41.html; italicized and underline emphasis ours)
Here is a different English rendering of the hadith:
Narrated Abu Huraira: The Prophet said, “The most awful (meanest) name in Allah’s sight.” Sufyan said more than once, “The most awful (meanest) name in Allah’s sight is (that of) a man calling himself king of kings.” Sufyan said, “Somebody else (i.e. other than Abu Az-Zinad, a sub-narrator) says: What is meant by ‘The king of kings’ is ‘Shahan Shah.” (Sahih al-Bukhari, Volume 8, Book 73, Number 224 https://www.searchtruth.com/book_display.php?book=73&translator=1&start=0&number=224; bold and italicized emphasis ours)
And yet, in the revelation that the Lord Jesus sent his angel to give to his servant John, Christ identifies himself as the First and the Last who died and came to life again:
“The Revelation of Jesus Christ, which God gave unto him, to shew unto his servants things which must shortly come to pass; and he sent and signified it by his angel unto his servant John: who bare record of the word of God, and of the testimony of Jesus Christ, and of all things that he saw. Blessed is he that readeth, and they that hear the words of this prophecy, and keep those things which are written therein: for the time is at hand… I John, who also am your brother, and companion in tribulation, and in the kingdom and patience of Jesus Christ, was in the isle that is called Patmos, for the word of God, and for the testimony of Jesus Christ. I was in the Spirit on the Lord’s day, and heard behind me a great voice, as of a trumpet, saying, I am Alpha and Omega, the first and the last: and, What thou seest, write in a book, and send it unto the seven churches which are in Asia; unto Ephesus, and unto Smyrna, and unto Pergamos, and unto Thyatira, and unto Sardis, and unto Philadelphia, and unto Laodicea. And I turned to see the voice that spake with me. And being turned, I saw seven golden candlesticks; and in the midst of the seven candlesticks one like unto the Son of man, clothed with a garment down to the foot, and girt about the paps with a golden girdle. His head and his hairs were white like wool, as white as snow; and his eyes were as a flame of fire; and his feet like unto fine brass, as if they burned in a furnace; and his voice as the sound of many waters. And he had in his right hand seven stars: and out of his mouth went a sharp twoedged sword: and his countenance was as the sun shineth in his strength. And when I saw him, I fell at his feet as dead. And he laid his right hand upon me, saying unto me, Fear not; I AM THE FIRST AND THE LAST: I am he that liveth, AND WAS DEAD; and, behold, I am alive for evermore, Amen; and have the keys of hell and of death. Write the things which thou hast seen, and the things which are, and the things which shall be hereafter; the mystery of the seven stars which thou sawest in my right hand, and the seven golden candlesticks. The seven stars are the angels of the seven churches: and the seven candlesticks which thou sawest are the seven churches.” Revelation 1:1-3, 9-20
“I Jesus have sent mine angel to testify unto you these things in the churches. I am the root and the offspring of David, and the bright and morning star… For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book: and if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things which are written in this book. He which testifieth these things saith, Surely I come quickly. Amen. Even so, come, Lord Jesus.” Revelation 22:16, 18-20
“And unto the angel of the church in Smyrna write; These things saith the first and the last, which WAS DEAD, and is alive;” Revelation 2:8
The Risen Lord also claims to be the One who rules over all the earthly kings because of his being the King of kings, as well as the Lord of lords:
“and from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us, and washed us from our sins in his own blood, and hath made us kings and priests unto God and his Father; to him be glory and dominion for ever and ever. Amen.” Revelation 1:5-6
“These shall make war with the Lamb, and the Lamb shall overcome them: for he is Lord of lords, and King of kings: and they that are with him are called, and chosen, and faithful.” Revelation 17:14
“And I saw heaven opened, and behold a white horse; and he that sat upon him was called Faithful and True, and in righteousness he doth judge and make war. His eyes were as a flame of fire, and on his head were many crowns; and he had a name written, that no man knew, but he himself. And he was clothed with a vesture dipped in blood: and his name is called The Word of God. And the armies which were in heaven followed him upon white horses, clothed in fine linen, white and clean. And out of his mouth goeth a sharp sword, that with it he should smite the nations: and he shall rule them with a rod of iron: and he treadeth the winepress of the fierceness and wrath of Almighty God. And he hath on his vesture and on his thigh a name written, KING OF KINGS, AND LORD OF LORDS.” Revelation 19:11-16
The foregoing explicitly shows that the Lord Jesus identified himself as God Almighty in the flesh by ascribing to himself the very unique names and functions, which even Muhammad taught belong to the true God alone!
As such, Jesus is the God of all creation, and therefore the God of all Muslims, which in turn makes him the God of their false prophet Muhammad!
All biblical citations taken from the Authorized King James Version (AV) of the Holy Bible.