Shubah reported: when Ibn Abbas took a bath because of sexual defilement, he poured (water) over his left hand with his right hand seven times. Once he forgot how many times he had poured (water). Therefore he asked me: how many times did I pour (water)? I do not know. He said: may you miss your mother! What prevented you from remembering it? He then performed ablution as he did for prayer and poured water over his skin (body). He then said: this is how the Messenger of Allah ﷺ purified (himself).
Hadith Referenceسنن ابي داود / كتاب الطهارة / 246
Hadith Gradingالألبانی:ضعيف | زبیر علی زئی:ضعيف, إسناده ضعيف, شعبة مولي عبد اللّٰه بن عباس: ضعيف ضعفه الجمهور،انظر تحرير تقريب التهذيب (2792), انوار الصحيفه، صفحه نمبر 22
Hadith Takhrij« تفرد به أبو داود، (تحفة الأشراف: 5682)، وقد أخرجہ: مسند احمد (1/307) (ضعیف) » (اس کے راوی شعبہ بن دینار ابوعبد اللہ مدنی ضعیف ہیں)