[Machine] When this verse was revealed, the Messenger of Allah ﷺ sent a messenger to Uwaim bin Sa'ida and said, "What is this purification that Allah has praised you for?" They replied, "O Prophet of Allah, no man or woman among us goes to defecate except that they wash their backsides or, instead, they wash their sitting areas." So the Prophet ﷺ said, "This (cleanliness) applies to this (situation)."
لَمَّا نَزَلَتْ هَذِهِ الْآيَةُ بَعَثَ رَسُولُ اللَّهِ ﷺ إِلَى عُوَيْمِ بْنِ سَاعِدَةَ فَقَالَ «مَا هَذَا الطُّهُورُ الَّذِي أَثْنَى اللَّهُ عَلَيْكُمْ بِهِ» فَقَالُوا يَا نَبِيَّ اللَّهِ مَا خَرَجَ مِنَّا رَجُلٌ وَلَا امْرَأَةٌ مِنَ الْغَائِطِ إِلَّا غَسَلَ دُبُرَهُ أَوْ قَالَ مَقْعَدَهُ فَقَالَ النَّبِيُّ ﷺ «فَفِي هَذَا»