Buraida said that a man of Khuza'a died and his estate was brought to the Prophet who gave instructions to look for an heir of his or some relative, but they found neither, so God’s Messenger said, “Give it to the leading man* of Khuza'a’ (al-kubr. This may mean the greatest in rank or in age, or, more probably, the nearest in kin to the man's oldest ancestor, the one with fewest intermediate links.
Abu Dawud transmitted it. In a version by him he said, “Look for the greatest (akbar. This might mean greatest or oldest, but it is most probably used here in the same sense as al-kubr) man of Khuza'a.'’