The Fai' and how it is spent Allah the Exalted explains the regulations for Fai', the booty that the Muslims acquire from the disbelievers, without fighting them or using cavalry and camelry in war against them.For instance, the booty collected from Bani An-Nadir was not acquired because of fighting them using horses and camels. The Muslims did not fight Bani An-Nadir in battle, but Allah forced them out of their forts on account of the fear that He placed in their hearts for Allah's Messenger Therefore, it was Fai' that Allah awarded His Messenger, with his discretion to spend it however he sees fit.Indeed, the Prophet spent the Fai' on righteous causes and for the benefit of Muslims in the areas that Allah mentioned in this Ayat,وَمَا أَفَاء اللَّهُ عَلَى رَسُولِهِ مِنْهُمْAnd what Allah gave as booty (Fai') to His Messenger from them.meaning, from Bani An-Nadir,فَمَا أَوْجَفْتُمْ عَلَيْهِ مِنْ خَيْلٍ وَلَا رِكَابٍfor this you made no expedition with either cavalry or camelry.refering to using camels,وَلَكِنَّ اللَّهَ يُسَلِّطُ رُسُلَهُ عَلَى مَن يَشَاءوَاللَّهُ عَلَى كُلِّ شَيْءٍ قَدِيرٌBut Allah gives power to His Messengers over whomsoever He wills. And Allah is Able to do all things.mean, Allah is powerful and cannot be resisted or opposed; He is the Compeller over all things.Allah the Exalted said