Imran b. Husain said:A man came to God’s Messenger and said,“My son’s son has died, so what do I receive from his estate?”He replied,“You receive a sixth;”then when he turned away he called him and said,“You receive another sixth;”and when he turned away he called him and said,“The other sixth is an allowance [beyond what is due] ,”(It would seem, although it is not explicit, that the grandson had left two daughters who were therefore entitled to two-thirds of the estate. The grandfather was entitled only to a sixth, but was given another sixth, as a favour, presumably because there were no other heirs). Ahmad, Tirmidhi and Abu Dawud transmitted it, Tirmidhi saying this is a hasan sahih tradition.