Sayyiduna Jubayr bin Mut'im (may Allah be pleased with him) narrated: The ritual bath (ghusl) was mentioned in the presence of the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) said: "As for me, it is enough for me to pour over my head three times, a palmful of water each time, for major impurity."
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 1474