Surah Ash-Shuraa — Ayah 48 (42:48)
فَإِنۡ أَعۡرَضُواْ فَمَآ أَرۡسَلۡنَٰكَ عَلَيۡهِمۡ حَفِيظًاۖ إِنۡ عَلَيۡكَ إِلَّا ٱلۡبَلَٰغُۗ وَإِنَّآ إِذَآ أَذَقۡنَا ٱلۡإِنسَٰنَ مِنَّا رَحۡمَةٗ فَرِحَ بِهَاۖ وَإِن تُصِبۡهُمۡ سَيِّئَةُۢ بِمَا قَدَّمَتۡ أَيۡدِيهِمۡ فَإِنَّ ٱلۡإِنسَٰنَ كَفُورٞ ٤٨
English translation (Saheeh International)
But if they turn away - then We have not sent you, [O Muḥammad], over them as a guardian; upon you is only [the duty of] notification. And indeed, when We let man taste mercy from Us, he rejoices in it; but if evil afflicts him for what his hands have put forth, then indeed, man is ungrateful.
Brief commentary
If they turn away from what you instruct them, then I have not sent you, O Messenger, as a guardian over them to watch their actions. Your duty is only to convey what I have instructed you to convey and their reckoning is left to Allah. When I give man a taste of My mercy of riches, health etc. he rejoices in it. But when a trial of difficulty befalls them on account of their sins, their nature is to be ungrateful for Allah’s favours and become angry at what Allah had in His wisdom decreed.