Jami at-Tirmidhi 640
Jami at-Tirmidhi · Book 7: The Book on Zakat · What Has Been Related About Charity On What Is Watered By Rivers Or Otherwise
Salim narrated from his father that :
حَدَّثَنَا أَحْمَدُ بْنُ الْحَسَنِ ، حَدَّثَنَا سَعِيدُ بْنُ أَبِي مَرْيَمَ ، حَدَّثَنَا ابْنُ وَهْبٍ ، حَدَّثَنِي يُونُسُ ، عَنِ ابْنِ شِهَابٍ ، عَنْ سَالِمٍ ، عَنْ أَبِيهِ ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم أَنَّهُ سَنَّ فِيمَا سَقَتِ السَّمَاءُ وَالْعُيُونُ أَوْ كَانَ عَثَرِيًّا الْعُشْرُ وَفِيمَا سُقِيَ بِالنَّضْحِ نِصْفُ الْعُشْرِ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
the Messenger of Allah instituted the Ushr of what was watered by the heavens and steams, or through natural channels, and half of the Ushr for what is watered by irrigation.
Grade: Sahih (Darussalam)