Ayesha reported,

Maymunah was asked about how the Messenger of Allah ﷺ would bathe after major ritual impurity. She said, "The Prophet ﷺ would have a vessel brought to him. He would pour water over his hands three times and wash them. Then he would pour water with his right hand onto his left and wash what was on his thighs. Then he would wash his hands, rinse his mouth, sniff water into his nose, pour water over his head three times, and then pour water over the rest of his body."

Nasai 246

Sahih

أخبرنا محمود بن غيلان أنبأنا النضر قال أنبأنا شعبة قال أنبأنا عطاء بن السائب قال سمعت أبا سلمة أنه دخل على

عائشة رضي الله عنها فسألها

عن غسل رسول الله ﷺ من الجنابة فقالت كان النبي ﷺ يؤتى بالإناء فيصب على يديه ثلاثا فيغسلهما ثم يصب بيمينه على شماله فيغسل ما على فخذيه ثم يغسل يديه ويتمضمض ويستنشق ويصب على رأسه ثلاثا ثم يفيض على سائر جسده

النسائي 246صحيح
Contents
Reference
Commentary
Ayat
Collection
Sunan Nasai Sughra
Book
Purification
Chapter
Removal of impurity from his body by the junub, after washing his hands
Numbering
Darussalam 246
Nasai 246