تفسير : (and show not favour, seeking worldly gain!) such that you give a little and receive instead what is more and better in the life of the world; it is also said this means: do not deem the works you do for allah to be too much.
Jalāl al-Dīn al-Maḥallī
تفسير : and do not grant a favour seeking greater gain (read tastakthiru as a circumstantial qualifier) in other words, do not give something in order to demand more in return: this [stipulation] is specific to the prophet (s), since he is enjoined to [adopt] the fairest traits and the noblest of manners;