"I said to Umm Salamah: 'Indeed I am a woman with lengthy hems, and I walk in places of filth.' So she said: 'Messenger of Allah said: "It is purified by what comes after it."  

قُلْتُ لأُمِّ سَلَمَةَ إِنِّي امْرَأَةٌ أُطِيلُ ذَيْلِي وَأَمْشِي فِي الْمَكَانِ الْقَذِرِ فَقَالَتْ قَالَ رَسُولُ اللَّهِ ﷺ يُطَهِّرُهُ مَا بَعْدَهُ قَالَ وَفِي الْبَابِ عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ قَالَ كُنَّا مَعَ رَسُولِ اللَّهِ ﷺ لاَ نَتَوَضَّأُ مِنَ الْمَوْطَإِ