حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا أَبَانُ، حَدَّثَنَا يَحْيَى، عَنْ أَبِي جَعْفَرٍ، عَنْ عَطَاءِ بْنِ يَسَارٍ، عَنْ أَبِي هُرَيْرَةَ، قَالَ بَيْنَمَا رَجُلٌ يُصَلِّي مُسْبِلاً إِزَارَهُ إِذْ قَالَ لَهُ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ اذْهَبْ فَتَوَضَّأْ ‏"‏ ‏.‏ فَذَهَبَ فَتَوَضَّأَ ثُمَّ جَاءَ ثُمَّ قَالَ ‏"‏ اذْهَبْ فَتَوَضَّأْ ‏"‏ ‏.‏ فَذَهَبَ فَتَوَضَّأَ ثُمَّ جَاءَ فَقَالَ لَهُ رَجُلٌ يَا رَسُولَ اللَّهِ مَا لَكَ أَمَرْتَهُ أَنَّ يَتَوَضَّأَ فَقَالَ ‏"‏إِنَّهُ كَانَ يُصَلِّي وَهُوَ مُسْبِلٌ إِزَارَهُ وَإِنَّ اللَّهَ تَعَالَى لاَ يَقْبَلُ صَلاَةَ رَجُلٍ مُسْبِلٍ إِزَارَهُ ‏"

Abu Hurairah said

While a man was praying with his lower garment trailing, the Messenger of Allah, peace and blessings be upon him, said to him: "Go and perform ablution." So he went and performed ablution, then came back. Then he said: "Go and perform ablution." So he went and performed ablution, then came back. A man said to him: "O Messenger of Allah, why did you order him to perform ablution?" He said: "He was praying while letting his lower garment trail, and indeed Allah the Exalted does not accept the prayer of a man who lets his lower garment trail."