The word(s) "witness" appears 134 time(s) in 104 verse(s) in Quran in Muhammad Habib Shakir translation.

(51) And those who disbelieve say: You are not a messenger. Say: Allah is sufficient as a witness between me and you and whoever has knowledge of the Book.

(52) And on the day when We will raise up a witness out of every nation, then shall no permission be given to those who disbelieve, nor shall they be made to solicit favor.

(53) And on the day when We will raise up in every people a witness against them from among themselves, and bring you as a witness against these-- and We have revealed the Book to you explaining clearly everything, and a guidance and mercy and good news for those who submit.

(54) Keep up prayer from the declining of the sun till the darkness of the night and the morning recitation; surely the morning recitation is witnessed.

(55) Say: Allah suffices as a witness between me and you; surely He is Aware of His servants, Seeing.

(56) I did not make them witnesses of the creation of the heavens and the earth, nor of the creation of their own souls; nor could I take those who lead (others) astray for aiders.

(57) He said: Nay! your Lord is the Lord of the heavens and the earth, Who brought them into existence, and I am of those who bear witness to this:

(58) Said they: Then bring him before the eyes of the people, perhaps they may bear witness.

(59) And Dawood and Sulaiman when they gave judgment concerning the field when the people's sheep pastured therein by night, and We were bearers of witness to their judgment.

(60) Surely those who believe and those who are Jews and the Sabeans and the Christians and the Magians and those who associate (others with Allah)-- surely Allah will decide between them on the day of resurrection; surely Allah is a witness over all things.