The Prophet ( sal Allaahu alayhi wa sallam ) said : None amongst you should urinate in stagnant water , and then wash in it.  

عَنِ النَّبِيِّ ﷺ قَالَ لاَ يَبُولَنَّ أَحَدُكُمْ فِي الْمَاءِ الدَّائِمِ ثُمَّ يَغْتَسِلُ مِنْهُ  

The Prophet ﷺ said: None amongst you should urinate in standing water, then wash in it after sexual defilement.  

قَالَ رَسُولُ اللَّهِ ﷺ لاَ يَبُولَنَّ أَحَدُكُمْ فِي الْمَاءِ الدَّائِمِ وَلاَ يَغْتَسِلْ فِيهِ مِنَ الْجَنَابَةِ