The word(s) "testified" appears 4 time(s) in 4 verse(s) in Quran in Saheeh International translation.

(1) And [mention] when your Lord took from the children of Adam - from their loins - their descendants and made them testify of themselves, [saying to them], "Am I not your Lord?" They said, "Yes, we have testified." [This] - lest you should say on the day of Resurrection, "Indeed, we were of this unaware."

(2) [Joseph] said, "It was she who sought to seduce me." And a witness from her family testified. "If his shirt is torn from the front, then she has told the truth, and he is of the liars.

(3) And they will say to their skins, "Why have you testified against us?" They will say, "We were made to speak by Allah, who has made everything speak; and He created you the first time, and to Him you are returned.

(4) Say, "Have you considered: if the Qur'an was from Allah, and you disbelieved in it while a witness from the Children of Israel has testified to something similar and believed while you were arrogant...?" Indeed, Allah does not guide the wrongdoing people.