مُسْنَدُ أَحْمَدَ
Musnad Ahmad 1485
Musnad Abu Ishaq Sa'd bin Abi Waqqas
It was narrated from Muhammad bin Sa"d, from his father, that: The Prophet (ﷺ) entered upon him in Makkah when he was sick. He said: I have only one daughter, should I bequeath all of my wealth (to charity)? The Prophet (ﷺ) said: “No." He said: Should I bequeath half of it? The Prophet (ﷺ) said: “No." He said: Should l bequeath one third of it? He said: “One third, and one third is a lot."
Musnad Ahmad 1485Sahih (Darussalam), al Bukhari (56) and Muslim (1628)]