Mukhtasar Muslim

Aswad bin Yazid says that people mentioned to Umm al-Mu'minin Aisha Siddiqa (may Allah be pleased with her) that Sayyiduna Ali (may Allah be pleased with him) was the executor (wasi) of the Messenger of Allah (peace and blessings be upon him). So she said, "When did he (peace and blessings be upon him) make him the executor? I was holding the Messenger of Allah (peace and blessings be upon him) to my chest, or he (peace and blessings be upon him) was in my lap, when he (peace and blessings be upon him) asked for a basin, then he (peace and blessings be upon him) fell into my lap, and I did not realize that he (peace and blessings be upon him) had passed away. So at what time did he make a will (to Ali)?"