حَدَّثَنَا حَيْوَةُ بْنُ شُرَيْحٍ حَدَّثَنَا بَقِيَّةُ عَنْ بُجَيْرٍ هُوَ ابْنُ سَعْدٍ عَنْ خَالِدٍ عَنْ بَعْضِ أَصْحَابِ النَّبِيِّ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ أَنَّ النَّبِيَّ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ رَأَی رَجُلًا يُصَلِّ وَفِي ظَهْرِ قَدَمِهِ لُمْعَةٌ قَدْرُ الدِّرْهَمِ لَمْ يُصِبْهَا الْمَائُ فَأَمَرَهُ النَّبِيُّ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ أَنْ يُعِيدَ الْوُضُوئَ وَالصَّلَاةَ
سنن ابودوٗد · Hadith 175
Narrated Some Companions of the Prophet: The Prophet ﷺ saw a person offering prayer, and on the back of his foot a small part equal to the space of a dirham remained unwashed; the water did not reach it. The Prophet ﷺ commanded him to repeat the ablution and prayer.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020