The word(s) "gain" appears 351 time(s) in 314 verse(s) in Quran in Mohsin Khan translation.

(211) And when a party of them said: "O people of Yathrib (Al-Madinah)! There is no stand (possible) for you (against the enemy attack!) Therefore go back!" And a band of them ask for permission of the Prophet (صلى الله عليه وسلم) saying: "Truly, our homes lie open (to the enemy)." And they lay not open. They but wished to flee.

(212) They think that Al-Ahzab (the Confederates) have not yet withdrawn; and if Al-Ahzab (the Confederates) should come (again), they would wish they were in the deserts (wandering) among the bedouins, seeking news about you (from a far place); and if they (happen) to be among you, they would not fight but little.

(213) And Allah drove back those who disbelieved in their rage: they gained no advantage (booty). Allah sufficed for the believers in the fighting (by sending against the disbelievers a severe wind and troops of angels). And Allah is Ever All-Strong, All-Mighty.

(214) You (O Muhammad صلى الله عليه وسلم) can postpone (the turn of) whom you will of them (your wives), and you may receive whom you will. And whomsoever you desire of those whom you have set aside (her turn temporarily), it is no sin on you (to receive her again): that is better that they may be comforted and not grieved, and may all be pleased with what you give them. Allah knows what is in your hearts. And Allah is Ever All-Knowing, Most Forbearing.

(215) But those who strive against Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) to frustrate them - those, for them will be a severe painful torment.

(216) Those who disbelieve say: "Shall we direct you to a man (Muhammad صلى الله عليه وسلم) who will tell you (that) when you have become fully disintegrated into dust with full dispersion, then you will be created (again) anew?"

(217) Has he (Muhammad صلى الله عليه وسلم) invented a lie against Allah, or is there a madness in him? Nay, but those who disbelieve in the Hereafter are (themselves) in a torment, and in far error.

(218) But they turned away (from the obedience of Allah), so We sent against them Sail Al-'Arim (flood released from the dam), and We converted their two gardens into gardens producing bitter bad fruit, and tamarisks, and some few lote-trees.

(219) And those who strive against Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.), to frustrate them, they will be brought to the torment.

(220) And they will say (in the Hereafter): "We do believe (now):" but how could they receive (Faith and the acceptance of their repentance by Allah) from a place so far off (i.e. to return to the worldly life again).