An Nahl, 82 Ayah
16:82
فَإِن تَوَلَّوۡاْ فَإِنَّمَا عَلَيۡكَ ٱلۡبَلَٰغُ ٱلۡمُبِينُ ٨٢
Fa'in Tawallaw Fa'innamā `Alayka Al-Balāghu Al-Mubīnu
But if they turn away, [O Muhammad] - then only upon you is [responsibility for] clear notification.