(7) باب مِيرَاثِ ابْنِ الاِبْنِ، إِذَا لَمْ يَكُنِ ابْنٌ
Narrated Ibn `Abbas:
Allah's Messenger (ﷺ) said, "Give the Fara'id (shares prescribed in the Qur'an) to those who are entitled to receive it; and whatever remains, should be given to the closest male relative of the deceased.'
Reference: Sahih al-Bukhari 6735
In-book reference: Book 85, Hadith 12
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 80, Hadith 727