Ash-Shuraa 42:48

Fa-in aAAradoo fama arsalnakaAAalayhim hafeethan in AAalayka illaalbalaghu wa-inna itha athaqnaal-insana minna rahmatan fariha bihawa-in tusibhum sayyi-atun bima qaddamat aydeehimfa-inna al-insana kafoor

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.

So, if they turn away, then We did not send you (O Prophet,) as a supervisor over them. You are not responsible but for conveying the message. And when We make man taste mercy from Us, he rejoices with it, and if an evil befalls him because of what their hands sent ahead, then man becomes ungrateful.