"I do not have any children apart from one daughter. Shall I bequeath all my wealth?" The Prophet said: "No." He said: "Shall I bequeath half of it?" The Prophet said: "No." He said: "Shall I bequeath one-third of it?" He said: "One-third, and one-third is much or large."
Sunan an-Nasa'i Book 30, Hadith 25
← Previous Hadith "If the people were to reduce (their bequests) to one-quarter (of their wealth, that would be better), because the Messenger of Allah said: 'One-third, and one-third is much or large.'"

Sunan an-Nasa'i Book 30, Hadith 24 Next Hadith → "You know that my father was martyred on the Day of Uhud and he left behind a great deal of debt. I would like the creditors to see you." He said: "Go and pile up the dates in separate heaps." I did that, then I called him. When they saw him, it was as if they started to put pressure on me at that time. When he saw what they were doing, he went around the biggest heap three times, then he sat on it then said: "Call your companions (the creditors)." Then he kept on weighing them out for them, until Allah cleared all my father's debts. I am pleased that Allah cleared my father's debts without even a single date being missed.

Sunan an-Nasa'i Book 30, Hadith 26