Aal-'Imran - 3:132

وَأَطِيعُواْ اللّهَ وَالرَّسُولَ لَعَلَّكُمْ تُرْحَمُونَ
[3:132]
And obey Allah and the Messenger, that you may be shown mercy.
And obey Allah and the Messenger; that ye may obtain mercy.
And obey Allah and the messenger, that ye may find mercy.