Sahih Bukhari Volume 6, Book 60, Hadith Number 101.

Narrated By Jabir : The Prophet and Abu Bakr came on foot to pay me a visit (during my illness) at Banu Salama’s (dwellings). The Prophet found me unconscious, so he asked for water and performed the ablution from it and sprinkled some water over it. I came to my senses and said, “O Allah’s Apostle! What do you order me to do as regards my wealth?” So there was revealed:

“Allah commands you as regards your children’s (inheritance).” (4.11)