Sayyiduna Ibn Abbas (may Allah be pleased with them both) says: My maternal aunt, Sayyidah Maymunah (may Allah be pleased with her), told me: I placed the water for the Messenger of Allah's (peace and blessings be upon him) ritual bath near him. He (peace and blessings be upon him) washed his palms two or three times, then put his right palm into the vessel and poured water with it over his private part, then washed it with his left hand. Then he rubbed his left hand vigorously on the ground, then performed ablution as for prayer, then poured three handfuls over his head, then washed his whole body. Then he moved away from that place and he (peace and blessings be upon him) washed his feet. Then I brought him a towel, but he (peace and blessings be upon him) returned it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 815
Sayyiduna Ibn Abbas (may Allah be pleased with them both) narrates from Sayyidah Maymunah (may Allah be pleased with her) that when the Prophet (peace and blessings be upon him) took the ritual bath for janabah (major impurity), he would tip the vessel over his hand and wash them three times, then pour water with his right hand over his left hand, then over his private part, then rub his hand on the ground, then wash it, then perform ablution as for prayer, then pour water over his head and over his whole body, then move aside and wash his feet.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 816
Al-A'mash narrated with the same chain that the Prophet (peace and blessings be upon him) took the ritual bath for janabah (major impurity): he washed his private part with his hand, then rubbed it on the wall, then washed it, then performed ablution as for prayer; and when he had finished his bath, he washed his feet.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 817
Al-Sha'bi says that Sayyidah Aishah (may Allah be pleased with her) said: If you wish, I will show you the mark of the hand of the Messenger of Allah (peace and blessings be upon him) on the wall, at the place where he (peace and blessings be upon him) used to take the ritual bath for janabah (major impurity).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 818