The word(s) "proof" appears 241 time(s) in 235 verse(s) in Quran in Mohsin Khan translation.

(101) Then after them We sent Musa (Moses) and Harun (Aaron) to Fir'aun (Pharaoh) and his chiefs with Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.). But they behaved arrogantly and were Mujrimun (disbelievers, sinners, polytheists, criminals) folk.

(102) So this day We shall deliver your (dead) body (out from the sea) that you may be a sign to those who come after you! And verily, many among mankind are heedless of Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.).

(103) And be not one of those who belie the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of Allah, for then you shall be one of the losers.

(104) Say: "Behold all that is in the heavens and the earth," but neither Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) nor warners benefit those who believe not.

(105) Can they (Muslims) who rely on a clear proof (the Qur'an) from their Lord, and whom a witness [Jibril (Gabriel عليه السلام)] from Him recites (follows) it (can they be equal with the disbelievers); and before it, came the Book of Musa (Moses), a guidance and a mercy, they believe therein, but those of the sects (Jews, Christians and all the other non-Muslim nations) that reject it (the Qur'an), the Fire will be their promised meeting-place. So be not in doubt about it (i.e. those who denied Prophet Muhammad صلى الله عليه و سلم and also denied all that which he brought from Allah. Surely, they will enter Hell). Verily, it is the truth from your Lord, but most of the mankind believe not.

(106) He said: "O my people! Tell me, if I have a clear proof from my Lord, and a Mercy (Prophethood) has come to me from Him, but that (Mercy) has been obscured from your sight. Shall we compel you to accept it (Islamic Monotheism) when you have a strong hatred for it?

(107) Such were 'Ad (people). They rejected the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of their Lord and disobeyed His Messengers, and followed the command of every proud obstinate (oppressor of the truth, from their leaders).

(108) He said: "O my people! Tell me, if I have a clear proof from my Lord, and there has come to me a Mercy (Prophethood) from Him, who then can help me against Allah, if I were to disobey Him? Then you increase me not but in loss.

(109) And indeed We sent Musa (Moses) with Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) and a manifest authority.

(110) Verily, in Yusuf (Joseph) and his brethren, there were Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) for those who ask.