Surah Muhammad, Verse 21

طَاعَةٞ وَقَوۡلٞ مَّعۡرُوفٞۚ فَإِذَا عَزَمَ ٱلۡأَمۡرُ فَلَوۡ صَدَقُواْ ٱللَّهَ لَكَانَ خَيۡرٗا لَّهُمۡ٢١

ṭāʿatun waqawlun maʿrūfun fa-idhā ʿazama l-amru falaw ṣadaqū l-laha lakāna khayran lahum

Obedience and good words. And when the matter [of fighting] was determined, if they had been true to Allāh, it would have been better for them.