Musannaf Ibn Abi Shaybah

It is narrated from Hazrat Imran bin Husain (may Allah be pleased with him) that a man came to the Holy Prophet (peace and blessings be upon him) and said, "My grandson has passed away, what will I receive from his inheritance?" The Prophet replied, "For you, there is one-sixth of the wealth." When he turned away, the Prophet called him back and said, "For you, there is another one-sixth." When he turned away again, the Prophet called him once more and said, "The second one-sixth is as a gift."

Hazrat Ma'qil bin Yasar Muzani (may Allah be pleased with him) narrates that I heard the Messenger of Allah (peace and blessings be upon him) when a case of inheritance was brought to him in which the grandfather was also mentioned; he (the Prophet) allotted him either one-third of the wealth or one-sixth of the wealth.

Hasan (may Allah have mercy on him) narrates that Hazrat Umar (may Allah be pleased with him) asked: Who knows what the Prophet Muhammad (peace and blessings be upon him) said regarding the grandfather? Hazrat Ma'qil bin Yasar (may Allah be pleased with him) replied that the Messenger of Allah (peace and blessings be upon him) made this decision regarding us. He asked, What decision was made? He replied, That of the sixth share of the wealth. He asked: In the presence of which relatives? He replied, I do not know. He said: If you do not know anything, then what is the benefit of knowing this matter?

Hazrat Abu Saeed Khudri (may Allah be pleased with him) narrates that during the time of the Messenger of Allah (peace and blessings be upon him), we used to consider the grandfather as an heir.

Ibrahim states that Hazrat Ali (may Allah be pleased with him) would not give the grandfather more than one-sixth when there were children.