An-Nisa' - 4:80

مَّنْ يُطِعِ الرَّسُولَ فَقَدْ أَطَاعَ اللّهَ وَمَن تَوَلَّى فَمَا أَرْسَلْنَاكَ عَلَيْهِمْ حَفِيظًا
[4:80]
Whoever obeys the Messenger, he indeed obeys Allah, and whoever turns back, so We have not sent you as a keeper over them.
He who obeys the Messenger, obeys Allah: But if any turn away, We have not sent thee to watch over their (evil deeds).
Whoso obeyeth the messenger hath obeyed Allah, and whoso turneth away: We have not sent thee as a warder over them.