Sahih Muslim Book - 32, Hadith - 4574

حَدَّثَنَا أَحْمَدُ بْنُ حَنْبَلٍ وَمُحَمَّدُ بْنُ رَافِعٍ قَالاَ حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا مَعْمَرٌ عَنْ هَمَّامِ بْنِ مُنَبِّهٍ قَالَ هَذَا مَا حَدَّثَنَا أَبُو هُرَيْرَةَ عَنْ رَسُولِ اللَّهِ -صلى الله عليه وسلم- فَذَكَرَ أَحَادِيثَ مِنْهَا وَقَالَ قَالَ رَسُولُ اللَّهِ -صلى الله عليه وسلم- « أَيُّمَا قَرْيَةٍ أَتَيْتُمُوهَا وَأَقَمْتُمْ فِيهَا فَسَهْمُكُمْ فِيهَا وَأَيُّمَا قَرْيَةٍ عَصَتِ اللَّهَ وَرَسُولَهُ فَإِنَّ خُمُسَهَا لِلَّهِ وَلِرَسُولِهِ ثُمَّ هِىَ لَكُمْ ».

It was narrated that Hammam bin Munabbih said: This is what Abu Hurairah narrated to us from Muhammad, the Messenger of Allah (s.a.w), and he mentioned a number of Ahadith, including the following: The Messenger of Allah (s.a.w) said: "If you come to a town (and take it peacefully) and stay there, then you have your share in it, but any town that disobeys Allah and His Messenger (and is seized by force), one fifth of it is for Allah and His Messenger (s.a.w) then the rest is for you."