(3) باب الْوَصِيَّةِ بِالثُّلُثِ
'Amir bin Sa'd (narrated) from his father that he fell sick in Makkah and the Messenger of Allah came to him. When Sa'd saw him, he wept and said:
"O Messenger of Allah, am I to die in the land from which I emigrated?" He said: "No, if Allah wills." He said: "O Messenger of Allah, shall I bequeath all of my wealth in the cause of Allah?" He said: "No." He said: "Two-thirds?" He said: "No." He said: "Half of it?" He said: "No." He said: "One-third of it?" The Messenger of Allah said: "One-third, and one-third is a lot. If you leave your sons independent of means that is better than if you leave them poor, holding out their hands to people."
Reference: Sunan an-Nasa'i 3630
In-book reference: Book 30, Hadith 20
English translation: Vol. 4, Book 30, Hadith 3660