The word(s) "gains" appears 372 time(s) in 355 verse(s) in Quran in Muhammad Habib Shakir translation.

(291) And We have appointed for them comrades so they have made fair-seeming to them what is before them and what is behind them, and the word proved true against them-- among the nations of the jinn and the men that have passed away before them-- that they shall surely be losers.

(292) Whoever does good, it is for his own soul, and whoever does evil, it is against it; and your Lord is not in the least unjust to the servants.

(293) Or do they say: He has forged a lie against Allah? But if Allah pleased, He would seal your heart; and Allah will blot out the falsehood and confirm the truth with His words; surely He is Cognizant of what is in the breasts.

(294) And whoever defends himself after his being oppressed, these it is against whom there is no way (to blame).

(295) The way (to blame) is only against those who oppress men and revolt in the earth unjustly; these shall have a painful punishment.

(296) And (other) embellishments of gold; and all this is naught but provision of this world's life, and the hereafter is with your Lord only for those who guard (against evil).

(297) The friends shall on that day be enemies one to another, except those who guard (against evil).

(298) And that do not exalt yourselves against Allah, surely I will bring to you a clear authority:

(299) Surely those who guard (against evil) are in a secure place,

(300) Whoever does good, it is for his own soul, and whoever does evil, it is against himself; then you shall be brought back to your-- Lord.