Laws of Inheritance (Al-Faraa'id)

Bukhari :: Book 8 :: Volume 80 :: Hadith 730

Narrated Ibn 'Abbas:

The person about whom Allah's Apostle said, "If I were to take a Khalil from this nation (my followers), then I would have taken him (i.e., Abu Bakr), but the Islamic Brotherhood is better (or said: good)," regarded a grandfather as the father himself (in inheritance).