عَنْ عَطَاءِ بْنِ يَسَارٍ عَنْ بَعْضِ أَصْحَابِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ: بَيْنَمَا رَجُلٌ يُصَلِّي وَهُوَ مُسْبِلٌ إِزَارَهُ إِذْ قَالَ لَهُ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: ((اذْهَبْ فَتَوَضَّأْ)) قَالَ: فَذَهَبَ فَتَوَضَّأَ، ثُمَّ جَاءَ فَقَالَ لَهُ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: ((اذْهَبْ فَتَوَضَّأْ)) قَالَ: فَذَهَبَ فَتَوَضَّأَ ثُمَّ جَاءَ فَقَالَ لَهُ رَجُلٌ: مَا لَكَ يَا رَسُولَ اللَّهِ! مَا لَكَ أَمَرْتَهُ يَتَوَضَّأُ ثُمَّ سَكَتَّ؟ قَالَ: ((إِنَّهُ كَانَ يُصَلِّي وَهُوَ مُسْبِلٌ إِزَارَهُ وَإِنَّ اللَّهَ عَزَّ وَجَلَّ لَا يَقْبَلُ صَلَاةَ عَبْدٍ مُسْبِلٍ إِزَارَهُ))
A companion of the Messenger of Allah (may Allah be pleased with him) narrates that once a man was performing prayer while his lower garment (was hanging below his ankles). Suddenly, the Messenger of Allah (peace and blessings be upon him) said to him: Go and perform ablution. So he went, performed ablution, and returned, but the Prophet (peace and blessings be upon him) again said: Go and perform ablution. Then he went, performed ablution, and returned. Meanwhile, a man said: O Messenger of Allah! What is the reason that you commanded him, he performed ablution and returned, and then you remained silent? The Prophet (peace and blessings be upon him) said: He was praying in such a state that his lower garment was hanging down, and Allah Almighty does not accept the prayer of a man who lets his lower garment hang (below the ankles).