The word(s) "behind" appears 63 time(s) in 62 verse(s) in Quran in Mohsin Khan translation.

(31) He knows what is before them, and what is behind them, and they cannot intercede except for him with whom He is pleased. And they stand in awe for fear of Him.

(32) He knows what is before them, and what is behind them. And to Allah return all matters (for decision).

(33) "So that I may do good in that which I have left behind!" No! It is but a word that he speaks; and behind them is Barzakh (a barrier) until the Day when they will be resurrected.

(34) Except an old woman (his wife) among those who remained behind.

(35) So We saved him and his family, except his wife. We destined her to be of those who remained behind.

(36) Say: "Perhaps that which you wish to hasten on, may be close behind you.

(37) Ibrahim (Abraham) said: "But there is Lut (Lot) in it." They said: "We know better who is there. We will verily save him [Lut (Lot)] and his family except his wife: she will be of those who remain behind (i.e. she will be destroyed along with those who will be destroyed from her folk)."

(38) And when Our Messengers came to Lut (Lot), he was grieved because of them, and felt straitened on their account. They said: "Have no fear, and do not grieve! Truly, we shall save you and your family, except your wife: she will be of those who remain behind (i.e. she will be destroyed along with those who will be destroyed from her folk).

(39) And if all the trees on the earth were pens and the sea (were ink wherewith to write), with seven seas behind it to add to its (supply), yet the Words of Allah would not be exhausted. Verily, Allah is All-Mighty, All-Wise.

(40) O you who believe! Enter not the Prophet's houses, unless permission is given to you for a meal, (and then) not (so early as) to wait for its preparation. But when you are invited, enter, and when you have taken your meal, disperse without sitting for a talk. Verily, such (behaviour) annoys the Prophet, and he is shy of (asking) you (to go); but Allah is not shy of (telling you) the truth. And when you ask (his wives) for anything you want, ask them from behind a screen: that is purer for your hearts and for their hearts. And it is not (right) for you that you should annoy Allah's Messenger, nor that you should ever marry his wives after him (his death). Verily, with Allah that shall be an enormity.