57فَضلًا مِن رَبِّكَ ۚ ذٰلِكَ هُوَ الفَوزُ العَظيمُMuhammad Asadan act of thy Sustainer's favour:1 and that, that will be the triumph supreme!I.e., by His having offered them guidance, of which they availed themselves: thus, the attainment of ultimate felicity is the result of an interaction between God and man, and of man's communion with Him.