Sunnah.com reference : Book 11, Hadith 50English translation : Book 11, Hadith 1345Arabic reference : Book 11, Hadith 1319
Abu Hurairah (RAA) narrated that The Messenger of Allah (ﷺ) said:
“Whichever town you take peacefully (they surrendered without, fighting), and stay therein, you have a share in it (in whatever is obtained from it); and whichever town disobeys Allah and His Messenger, a fifth of (its booty) goes to Allah and His Messenger and what remains is yours. Related by Muslim.
وَعَنْ أَبِي هُرَيْرَةَ ‏- رضى الله عنه ‏- أَنَّ رَسُولَ اَللَّهِ ‏- صلى الله عليه وسلم ‏-قَالَ: { 
"أَيُّمَا قَرْيَةٍ أَتَيْتُمُوهَا, فَأَقَمْتُمْ فِيهَا, فَسَهْمُكُمْ فِيهَا, وَأَيُّمَا قَرْيَةٍ عَصَتْ اَللَّهَ وَرَسُولَهُ, فَإِنْ خُمُسَهَا لِلَّهِ وَرَسُولِهِ , ثُمَّ هِيَ لَكُمْ" }  رَوَاهُ مُسْلِمٌ.‏  1‏ .‏‏1 ‏- صحيح رواه مسلم ( 1756 )‏.‏