Sahih al-Bukhari · Hadith 6738

Laws of Inheritance (Al-Faraa'id)

Narrated Ibn `Abbas: The person about whom Allah's Messenger (ﷺ) 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)