Udhaynah, from Zurarah and Bukayr, the sons of Aʿyan:
They asked Abu Jaʿfar
عليه السلام about the ablution (Wuduʾ) of the Messenger of Allah
سبحانه وتعالى (peace and blessings be upon him and his family). Imam
عليه السلام requested a basin or bowl with water, then demonstrated the ablution of the Messenger of Allah
سبحانه وتعالى (peace and blessings be upon him and his family) until Imam
عليه السلام reached the part where Allah
سبحانه وتعالى, the Exalted, says: “And wipe your heads and your feet up to the ankles.” (Surah Al-Ma'idah
5:6) Imam
عليه السلام said: "If one wipes any part of his head or any part of his feet (up to the ankles), from between the ankles to the ends of the toes, it suffices him." We said: "May Allah
سبحانه وتعالى make you prosper; where are the ankles?" Imam
عليه السلام said: "Here," pointing to the joint below the shinbone and above the foot. They said: "This is not it; what is this?" Imam
عليه السلام said: "This is the shinbone."