Al-Anfal 8:46

WaateeAAoo Allaha warasoolahuwala tanazaAAoo fatafshaloo watathhaba reehukumwasbiroo inna Allaha maAAa assabireen

And obey Allāh and His Messenger, and do not dispute and [thus] lose courage and [then] your strength would depart; and be patient. Indeed, Allāh is with the patient.

Obey Allah and His Messenger, and do not quarrel with each other, lest you should lose courage, and your prowess should evaporate; and be patient. Surely, Allah is with the patient.