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

(61) That they may witness advantages for them and mention the name of Allah during stated days over what He has given them of the cattle quadrupeds, then eat of them and feed the distressed one, the needy.

(62) And strive hard in (the way of) Allah, (such) a striving as is due to Him; He has chosen you and has not laid upon you an hardship in religion; the faith of your father Ibrahim; He named you Muslims before and in this, that the Apostle may be a bearer of witness to you, and you may be bearers of witness to the people; therefore keep up prayer and pay the poor-rate and hold fast by Allah; He is your Guardian; how excellent the Guardian and how excellent the Helper!

(63) (As for) the fornicatress and the fornicator, flog each of them, (giving) a hundred stripes, and let not pity for them detain you in the matter of obedience to Allah, if you believe in Allah and the last day, and let a party of believers witness their chastisement.

(64) And those who accuse free women then do not bring four witnesses, flog them, (giving) eighty stripes, and do not admit any evidence from them ever; and these it is that are the transgressors,

(65) And (as for) those who accuse their wives and have no witnesses except themselves, the evidence of one of these (should be taken) four times, bearing Allah to witness that he is most surely of the truthful ones.

(66) And it shall avert the chastisement from her if she testify four times, bearing Allah to witness that he is most surely one of the liars;

(67) Why did they not bring four witnesses of it? But as they have not brought witnesses they are liars before Allah.

(68) On the day when their tongues and their hands and their feet shall bear witness against them as to what they did.

(69) And they who do not bear witness to what is false, and when they pass by what is vain, they pass by nobly.

(70) They said: Swear to each other by Allah that we will certainly make a sudden attack on him and his family by night, then we will say to his heir: We did not witness the destruction of his family, and we are most surely truthful.