Arabic (Original)
قَالَ وَنَهَى رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَنْ يُبَالَ فِي الْمَاءِ الدَّائِمِ الَّذِي لَا يَجْرِي ثُمَّ يُغْتَسَلَ مِنْهُ قَالَ مُؤَمَّلٌ الرَّاكِدِ ثُمَّ يُغْتَسَلَ مِنْهُ.
English Translation
He said: And the Messenger of Allah, peace and blessings be upon him, forbade urinating in still water that does not flow and then bathing in it - Mu'ammal said: "stagnant water" - and then bathing in it.