An-Nisaa 4:80

Whoever obeys the Messenger has indeed obeyed Allah[59]. But anyone who turns away, We have not sent you [O Prophet] as a keeper over them[60].

[59] The Prophet (ﷺ) said: “Whoever obeys me has obeyed Allah, and whoever disobeys me has disobeyed Allah”. [Al-Bukhārī: 7137, Muslim: 1835]
[60] You are tasked only to convey the message.

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

80. He who obeys the Messenger (Muhammad صلى الله عليه وسلم), has indeed obeyed Allâh, but he who turns away, then we have not sent you (O Muhammad صلى الله عليه وسلم) as a watcher over them.[28]

[28] (V.4:80)
(A) Narrated Abu Hurairah رضي الله عنه : Allâh’s Messenger صلى الله عليه وسلم said, "Whoever obeys me, he obeys Allâh, and whoever disobeys me, he disobeys Allâh, and whoever obeys the ruler I appoint, he obeys me, and whoever disobeys him, he disobeys me." (Sahih Al-Bukhâri, Vol.9, Hadîth No.251).
(B) Narrated Abu Hurairah رضي الله عنه : Allâh’s Messenger صلى الله عليه وسلم said, "All my followers will enter Paradise except those who refuse." They said, "O Allâh’s Messenger! Who will refuse?" He said, "Whoever obeys me will enter Paradise, and whoever disobeys me is the one who refuses (to enter it)." (Sahih Al-Bukhâri, Vol.9, Hadîth No.384).

Whoso obeyeth the messenger hath obeyed Allah, and whoso turneth away: We have not sent thee as a warder over them.