If you come to a township (which has surrendered without a formal war) and stay therein, you have a share (that will be in the form of an award) in (the properties obtained from) it. If a township disobeys Allah and His Messenger (and actually fights against the Muslims) one-fifth of the booty seized therefrom is for Allah and His Apostle and the rest is for you.  

عَنْ رَسُولِ اللَّهِ ﷺ فَذَكَرَ أَحَادِيثَ مِنْهَا وَقَالَ قَالَ رَسُولُ اللَّهِ ﷺ أَيُّمَا قَرْيَةٍ أَتَيْتُمُوهَا وَأَقَمْتُمْ فِيهَا فَسَهْمُكُمْ فِيهَا وَأَيُّمَا قَرْيَةٍ عَصَتِ اللَّهَ وَرَسُولَهُ فَإِنَّ خُمُسَهَا لِلَّهِ وَلِرَسُولِهِ ثُمَّ هِيَ لَكُمْ  

Abu Hurairah reported the Apostle of Allaah ﷺ as saying “Whatever town you come to and stay in , your portion is in it, but whatever town disobeys Allaah and His Apostle a fifth of it goes to Allaah and His Apostle and what remains is yours.” (Using translation from Abū Dāʾūd 3036)   

وَقَالَ رَسُولُ اللهِ ﷺ أَيُّمَا قَرْيَةٍ أَتَيْتُمُوهَا فَأَقَمْتُمْ فِيهَافَسَهْمُكُمْ فِيهَا وَأَيُّمَا قَرْيَةٍ عَصَتِ اللهَ وَرَسُولَهُ فَإِنَّ خُمُسَهَا لِلَّهِ وَرَسُولِهِ ثُمَّ هِيَ لَكُمْ  

[Machine] And the Messenger of Allah ﷺ said, "Whichever town disobeys Allah and His Messenger, then indeed its one-fifth belongs to Allah and His Messenger, and it is for you."  

وَقَالَ رَسُولُ اللَّهِ ﷺ «أَيُّمَا قَرْيَةٍ عَصَتِ اللَّهَ وَرَسُولَهُ فَإِنَّ خُمُسَهَا لِلَّهِ وَلِرَسُولِهِ ثُمَّ هِيَ لَكُمْ»  

"أيُّمَا قَرْيَة أتَيتُمُوهَا وَأَقَمْتمْ فيها فسَهْمُكُمْ فيهَا، وَأَيُّمَا قَرْيَة عَصَتْ اللهَ وَرَسُولَهُ فَإِنَّ خُمسَهَا للهِ ولِرَسُولِهِ ثُمَّ هِيَ لَكُمْ ".