Ali Ibne Muhammad has narrated from one of our people whose name he mentioned. He said that Muhammad Ibne Ibrahim narrated to us, that Musa Ibne Muhammad Ibne Ismail Ibne Ubaidullah Ibne Abbas Ibne Ali Ibne Abu Talib narrated to us from Ja’far Ibne Zaid Ibne Musa from his father, from his forefathers the following:
“One day Umme Aslam came to the Holy Prophet (s) when he was in the house of Umme Salma. She asked about the Messenger of Allah. Umme Salma replied that he just went out for something and that he would return soon. She then waited with Umme Salma until he (the Messenger of Allah) came. Umme Aslam then said,
“May Allah take my soul and the souls of my parents in service for your cause, Messenger of Allah, I have read the books and have learned about all the prophets and the executors of their will. Musa had an executor for his will even in his lifetime and an executor of the will after he died. So also was Jesus. Who then is the executor of your will, O the Messenger of Allah?”
He said, “O Umme Aslam, the executor of my will in my lifetime and after I pass away is the same person.”
Then he said, “O Umme Aslam, “Whoever would be able to do what I intend to do just now he is and will be the executor of my will.”
He then picked up a pebble from the floor and crushed it with his fingers into something like flour. He then turned it into a piece of clay and then printed his seal on it and said, “Whoever would be able to do what I just did will be the executor of my will in my lifetime and after I will die.”
She then left him. She has said that she went to Amirul Momineen Ali (a) and said, “May Allah take my soul and the souls of my parents in service for your cause, are you the executor of the will of the Messenger of Allah?”
He said, “Yes, I am, O Umme Aslam.”
He then picked up a pebble, crushed it into powder like flour, turned it into clay and printed his seal on it. He then said,
“O Umme Aslam, whoever would be able to do what I just did he will be the executor of my will.”
I them went to Hasan (a) while he was a young boy. I asked him, “My master, are you the executor of the will of your father?”
He said, “Yes, I am, O Umme Aslam.”
He picked up a pebble and did exactly what his father had done. I left him and went to Husain (a) and considered him very little because of his young age. I asked him, “Are you the executor of the will of your brother?”
He said, “Yes, I am, O Umme Aslam bring me a pebble.”
He then did exactly what they had done. She says that she lived until she met Ali Ibne Husain (a) after the martyrdom of his father, on his return from Iraq. I asked him,
“Are you the executor of the will of your father?”
He said, “Yes, I am.”
He then also did exactly what they (a) had done.1
1 Al-Kafi, Vol. 1, Pg. 355.