Sahih al-BukhariChapter 4Hadith 239
Full Sharh — Sahih al-Bukhari 239
وَبِإِسْنَادِهِ قَالَ " لاَ يَبُولَنَّ أَحَدُكُمْ فِي الْمَاءِ الدَّائِمِ الَّذِي لاَ يَجْرِي، ثُمَّ يَغْتَسِلُ فِيهِ ".
English Translation
The same narrator said that the Prophet (ﷺ) had said: "You should not pass urine in stagnant water which is not flowing then (you may need to) wash in it
Source
Sahih al-Bukhari(صحيح البخاري)
Ablutions (Wudu')
Hadith Number
239