"The Messenger of Allah said:'For that which is watered by the sky, rivers and springs, one-tenth. For whatever is irrigated by animals, one-half of one-tenth."'
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ فِيمَا سَقَتِ السَّمَاءُ وَالأَنْهَارُ وَالْعُيُونُ الْعُشْرُ وَفِيمَا سُقِيَ بِالسَّانِيَةِ نِصْفُ الْعُشْرِ