The word(s) "ain" appears 1028 time(s) in 880 verse(s) in Quran in Abdullah Yusuf Ali translation.

(61) "Our Lord! Thou art He that will gather mankind Together against a day about which there is no doubt; for Allah never fails in His promise."

(62) Those who reject Faith,- neither their possessions nor their (numerous) progeny will avail them aught against Allah: They are themselves but fuel for the Fire.

(63) But how (will they fare) when we gather them together against a day about which there is no doubt, and each soul will be paid out just what it has earned, without (favour or) injustice?

(64) "Thou causest the night to gain on the day, and thou causest the day to gain on the night; Thou bringest the Living out of the dead, and Thou bringest the dead out of the Living; and Thou givest sustenance to whom Thou pleasest, without measure."

(65) He said: "O my Lord! Give me a Sign!" "Thy Sign," was the answer, "Shall be that thou shalt speak to no man for three days but with signals. Then celebrate the praises of thy Lord again and again, and glorify Him in the evening and in the morning."

(66) Among the People of the Book are some who, if entrusted with a hoard of gold, will (readily) pay it back; others, who, if entrusted with a single silver coin, will not repay it unless thou constantly stoodest demanding, because, they say, "there is no call on us (to keep faith) with these ignorant (Pagans)." but they tell a lie against Allah, and (well) they know it.

(67) There is among them a section who distort the Book with their tongues: (As they read) you would think it is a part of the Book, but it is no part of the Book; and they say, "That is from Allah," but it is not from Allah: It is they who tell a lie against Allah, and (well) they know it!

(68) As to those who reject Faith, and die rejecting,- never would be accepted from any such as much gold as the earth contains, though they should offer it for ransom. For such is (in store) a penalty grievous, and they will find no helpers.

(69) By no means shall ye attain righteousness unless ye give (freely) of that which ye love; and whatever ye give, of a truth Allah knoweth it well.

(70) In it are Signs Manifest; (for example), the Station of Abraham; whoever enters it attains security; Pilgrimage thereto is a duty men owe to Allah,- those who can afford the journey; but if any deny faith, Allah stands not in need of any of His creatures.