92. Is Muhammad’s self-proclamation of being a prophet a valid test or proof of prophethood?

the Bible No
Yes the Quran

the Bible's Perspective

Deuteronomy 19:15One witness shall not rise up against a man for any iniquity, or for any sin that he sins. At the mouth of two witnesses, or at the mouth of three witnesses, shall a matter be established.
John 5:31“If I testify about myself, my witness is not valid.
John 5:36But the testimony which I have is greater than that of John; for the works which the Father gave me to accomplish, the very works that I do, testify about me, that the Father has sent me.
1 Corinthians 14:32-33The spirits of the prophets are subject to the prophets, for God is not a God of confusion but of peace, as in all the assemblies of the saints.
2 Corinthians 13:1This is the third time I am coming to you. “At the mouth of two or three witnesses shall every word be established.”

the Quran's Perspective

An-Nisa (the Women) 4:79Whatever of good befalleth thee (O man) it is from Allah, and whatever of ill befalleth thee it is from thyself. We have sent thee (Muhammad) as a messenger unto mankind and Allah is sufficient as Witness.
Ar-Ra'd (Thunder) 13:43They who disbelieve say: Thou art no messenger (of Allah). Say: Allah, and whosoever hath knowledge of the Scripture, is sufficient witness between me and you.
Al-Fath (Victory) 48:28He it is Who hath sent His messenger with the guidance and the religion of truth, that He may cause it to prevail over all religion. And Allah sufficeth as a Witness.

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