John 14:24-26

His saying: (he shall teach you all things) corresponds to Allāh’s saying about the Qur’ān: {And We have sent down to you the Book as a clarification of all things} [An-Naḥl (The Bee), 16:89], and His other saying about the Qur’ān: {Never was the Qur’ān a narration invented, but a confirmation of what was before it and a detailed explanation of all things and guidance and mercy for a people who believe.} [Yusuf (Joseph), 12:111]. The Qur’ān contains a detailed explanation of every matter relating to creed, worship, transactions, and conduct; the discussion of this would be lengthy.

His saying: (the prince of this world cometh) is clear in its reference to the coming of Muḥammad (peace and blessings of Allāh be upon him), because no prophet has come after him. And this saying of the Messiah corresponds to Muḥammad’s own saying (peace and blessings of Allāh be upon him): “I am the master of the children of Adam — and there is no boasting in this. Adam and those below him will be under my banner. I am the orator of the prophets when they come, and their imam when they gather, and the bringer of glad tidings to them when they despair. The banner of praise is in my hand, and I am the most honored of the children of Adam in the sight of my Lord.” [Narrated by al-Tirmidhī in al-Manāqib, and Ibn Mājah in al-Zuhd.] His saying: (I am the master of the children of Adam — and there is no boasting in this) means: I do not say this by way of boasting or pride, but only by way of informing, because people need to know the ranks and stations of the prophets. In addition, his saying: (and hath nothing in me) means that his law is independent and abrogates the laws before it — it is not derived from them. There is nothing in the law of Muḥammad from the law of the Messiah; and how could there be, when the divine law of the Messiah has been completely altered by the human church councils, which took charge of his law after he was raised up to heaven and introduced into it what was not from it.