Sayyiduna Jubayr bin Mut'im (may Allah be pleased with him) narrated: The ritual bath (ghusl) for major impurity (janabah) was mentioned in the presence of the Messenger of Allah (peace and blessings be upon him), and he (peace and blessings be upon him) said: "As for me, I pour water over my head three times." Then he (peace and blessings be upon him) gestured with his hand, as though he (peace and blessings be upon him) were pouring water over the head with them both.
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 1467