Laws of Inheritance (Al-Faraa'id)
Bukhari :: Book 8 :: Volume 80 :: Hadith 737
Narrated Abu Huraira:
Allah's Apostle said, "I am more closer to the believers than their ownselves, so whoever (among them) dies leaving some inheritance, his inheritance will be given to his 'Asaba, and whoever dies leaving a debt or dependants or destitute children, then I am their supporter."