Al-Anfal - 8:46

وَأَطِيعُواْ اللّهَ وَرَسُولَهُ وَلاَ تَنَازَعُواْ فَتَفْشَلُواْ وَتَذْهَبَ رِيحُكُمْ وَاصْبِرُواْ إِنَّ اللّهَ مَعَ الصَّابِرِينَ
[8:46]
And obey Allah and His Messenger and do not quarrel for then you will be weak in hearts and your power will depart, and be patient; surely Allah is with the patient.
And obey Allah and His Messenger; and fall into no disputes, lest ye lose heart and your power depart; and be patient and persevering: For Allah is with those who patiently persevere:
And obey Allah and His messenger, and dispute not one with another lest ye falter and your strength depart from you; but be steadfast! Lo! Allah is with the steadfast.