Quran 74:6

Do not bestow favours in expectation of return,

Do not grant a favour seeking a greater gain,

And do not favour others in order to receive more.

Give not, thinking to gain greater

And (do) not confer favor (to) acquire more,

And bestow not favour that thou mayest receive more.

And give not a thing in order to have more (or consider not your deeds of Allah's obedience as a favour to Allah).

and bestow not favour in order to seek from others a greater return,

and do not think that by doing such deeds, you have done a great favor to God.

And bestow not favors that you may receive again with increase,

And show not favour, seeking wordly gain!

Do not give, thinking to gain greater

And do not confer favor to acquire more

And show no favor seeking gain.

do not bestow a favour in the expectation of receiving more in return;

Nor expect, in giving, any increase (for thyself)!