The Book of Purification
2/28. Chapter:
The prohibition of urinating into standing water
Sahih Muslim
وَحَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا جَرِيرٌ، عَنْ هِشَامٍ، عَنِ ابْنِ سِيرِينَ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لاَ يَبُولَنَّ أَحَدُكُمْ فِي الْمَاءِ الدَّائِمِ ثُمَّ يَغْتَسِلُ مِنْهُ " .
Abu Huraira reported: the Messenger of Allah (ﷺ) said: None amongst you should urinate in standing water, and then wash in it.
Reference : Sahih Muslim 282aIn-book reference : Book 2, Hadith 122USC-MSA web (English) reference : Book 2, Hadith 554