Those who permitted the kunya Abu al-Qasim

Ibrahim states that Hazrat Ibn Hanafiyyah was called by the nickname Abu al-Qasim.

Ibrahim states that Hazrat Muhammad bin Ash'ath, who was the nephew of Hazrat Aisha (may Allah be pleased with her), was called by the nickname Abu al-Qasim.

Hazrat Muhammad bin Hanafiyyah narrates that Hazrat Ali (may Allah be pleased with him) asked the Holy Prophet (peace and blessings be upon him): If after you (peace and blessings be upon him) a son is born to me, may I name him after your name and give him your kunyah? The Holy Prophet (peace and blessings be upon him) replied: Yes.