Maymuna bint Harith reported,

I screened the Prophet ﷺ while he was performing the major ritual bath. He washed his hands, then poured water with his right hand onto his left and washed his private parts and whatever had touched them. He then wiped his hand against the wall or the ground. Next, he performed ablution as he would for prayer, except for his feet. Then he poured water over his entire body, moved aside, and washed his feet.Abu Awana and Ibn Fudayl corroborated this report regarding the screening.

Bukhari 281

Sahih

حدثنا عبدان قال أخبرنا عبد الله قال أخبرنا سفيان عن الأعمش عن سالم بن أبي الجعد عن كريب عن ابن عباس

عن ميمونة قالت

سترت النبي ﷺ وهو يغتسل من الجنابة فغسل يديه ثم صب بيمينه على شماله فغسل فرجه وما أصابه ثم مسح بيده على الحائط أو الأرض ثم توضأ وضوءه للصلاة غير رجليه ثم أفاض على جسده الماء ثم تنحى فغسل قدميه تابعه أبو عوانة وابن فضيل في الستر

البخاري 281صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Ghusl
Chapter
Covering oneself during ghusl in front of people
Numbering
Darussalam 281
Bukhari 281