Sunan Abi Dawud 244
سنن أبي داود#244Da'ifحَدَّثَنَا الْحَسَنُ بْنُ شَوْكَرٍ، حَدَّثَنَا هُشَيْمٌ، عَنْ عُرْوَةَ الْهَمْدَانِيِّ، حَدَّثَنَا الشَّعْبِيُّ، قَالَ قَالَتْ عَائِشَةُ رضى الله عنها لَئِنْ شِئْتُمْ لأُرِيَنَّكُمْ أَثَرَ يَدِ رَسُولِ اللَّهِ صلى الله عليه وسلم فِي الْحَائِطِ حَيْثُ كَانَ يَغْتَسِلُ مِنَ الْجَنَابَةِ .
Narrated Aisha, Ummul Mu'minin: If you want, I can certainly show you the marks of the hand of the Messenger of Allah (ﷺ) on the wall where he took a bath because of sexual defilement
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniDaif
Muhammad Muhyi Al-Din Abdul HamidDaif
Shuaib Al ArnautDaif
Zubair Ali ZaiDaif
In-book reference: 1:244