Surah Al-Layl — Ayah 19 (92:19)

English translation (Saheeh International)

And not [giving] for anyone who has [done him] a favor to be rewarded¹ –

1. - i.e., without intending reciprocation for some benefit to himself.

Brief commentary

He does not spend whatever wealth he spends, to repay any favour done to him by anyone.