(25) باب مَا يُوجِبُ الْعُشْرَ وَمَا يُوجِبُ نِصْفَ الْعُشْرِ
It was narrated from Salim, from his father, that the Messenger of Allah said:
"For whatever is irrigated by the sky, rivers and springs, or draws up water from deep roots, one-tenth. For whatever is irrigated by animals and artificial means, one half of one-tenth."
Reference: Sunan an-Nasa'i 2488
In-book reference: Book 23, Hadith 0
English translation: Vol. 3, Book 23, Hadith 2490