Qur'an 4:80

مَّن يُطِعِ ٱلرَّسُولَ فَقَدْ أَطَاعَ ٱللَّهَ ۖ وَمَن تَوَلَّىٰ فَمَآ أَرْسَلْنَـٰكَ عَلَيْهِمْ حَفِيظًا

“He who obeys the Messenger has obeyed Allāh; but those who turn away - We have not sent you over them as a guardian.”

An-Nisaa 4:80 · Saheeh International