Laws of Inheritance (Al-Faraa'id)
Bukhari :: Book 8 :: Volume 80 :: Hadith 716
Narrated Jabir bin 'Abdullah:
I became sick so Allah's Apostle and Abu Bakr came on foot to pay me a visit. When they came, I was unconscious. Allah's Apostle performed ablution and he poured over me the water (of his ablution) and I came to my senses and said, "O Allah's Apostle! What shall I do regarding my property? How shall I distribute it?" The Prophet did not reply till the Divine Verses of inheritance were revealed .