Sunan an-Nasa'i 3632

Ishaq ibn Ibrahim reported to us: Waki' narrated to us: Hisham ibn 'Urwah narrated to us, from his father, from Sa'd, that the Prophet (peace and blessings be upon him) visited him during his illness. Sa'd said, ‘Messenger of Allah, may I bequeath all my wealth?’ He said, ‘No.’ Sa'd asked, ‘Then half?’ He said, ‘No.’ He asked, ‘Then one-third?’ He said, ‘One-third—and one-third is much’—or ‘great.’