"It was said, 'O Messenger of Allah! Shall we use the water of Buda'ah well to perform ablution while it is a well in which menstruation rags, flesh of dogs and the putrid are dumped?" Messenger of Allah said: 'Indeed water is pure, nothing makes it impure.'"  

قِيلَ يَا رَسُولَ اللَّهِ أَنَتَوَضَّأُ مِنْ بِئْرِ بُضَاعَةَ وَهِيَ بِئْرٌ يُلْقَى فِيهَا الْحِيَضُ وَلُحُومُ الْكِلاَبِ وَالنَّتْنُ فَقَالَ رَسُولُ اللَّهِ ﷺ إِنَّ الْمَاءَ طَهُورٌ لاَ يُنَجِّسُهُ شَيْءٌ