Sayyidah Aishah (may Allah be pleased with her) says: When the Messenger of Allah (peace and blessings be upon him) took the ritual bath for janabah (major impurity), he would wash his hands and perform ablution as for prayer, then run his hands through his hair; when he (peace and blessings be upon him) was confident that he had moistened his skin, he would pour water over it three times, then wash his whole body. Sayyidah Aishah (may Allah be pleased with her) says: The Messenger of Allah (peace and blessings be upon him) and I used to bathe together from a single vessel, both of us scooping water from it together.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 824