Surah 61. As-Saff, Ayah 10

Cf. 9:111 - "God has bought of the believers their lives and their possessions, promising them paradise in return" - which explains the metaphor of a "bargain" (tijarah). My interpolation, between brackets, of the phrase "in this world and in the life to come" is justified by the subsequent verses {12} and {13}, one of which relates to the hereafter, and the other to this world.

Tijarat: bargain, trade, traffic, transaction: something given or done, in return for something which we desire to get. What we give or do on our part is described in verse 11 below, and what we get is described in verse 12. It is truly a wonderful bargain: what we are asked to give is so little; what we are promised in return is so much. There comes Allah's unbounded Bounty and Munificence. Cf. also ix. 111, where the bargain is stated in another way.