Sunan Abi Dawud 70
سنن أبي داود#70Sahihحَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا يَحْيَى، عَنْ مُحَمَّدِ بْنِ عَجْلاَنَ، قَالَ سَمِعْتُ أَبِي يُحَدِّثُ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ يَبُولَنَّ أَحَدُكُمْ فِي الْمَاءِ الدَّائِمِ وَلاَ يَغْتَسِلْ فِيهِ مِنَ الْجَنَابَةِ " .
Narrated AbuHurayrah: The Prophet (ﷺ) said: None amongst you should urinate in standing water, then wash in it after 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-AlbaniHasan Sahih
Muhammad Muhyi Al-Din Abdul HamidHasan Sahih
Shuaib Al ArnautSahih
Zubair Ali ZaiIsnaad Hasan
In-book reference: 1:70