The word(s) "mediate" appears 4 time(s) in 4 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) If there had been immediate gain (in sight), and the journey easy, they would (all) without doubt have followed thee, but the distance was long, (and weighed) on them. They would indeed swear by Allah, "If we only could, we should certainly have come out with you": They would destroy their own souls; for Allah doth know that they are certainly lying.

(2) He said: "This has been given to me because of a certain knowledge which I have." Did he not know that Allah had destroyed, before him, (whole) generations,- which were superior to him in strength and greater in the amount (of riches) they had collected? but the wicked are not called (immediately) to account for their sins.

(3) (Here is) a Book which We have sent down unto thee, full of blessings, that they may mediate on its Signs, and that men of understanding may receive admonition.

(4) Therefore, when thou art free (from thine immediate task), still labour hard,