عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ رَضِيَ اللَّهُ عَنْهُ أَنَّهُ سُئِلَ عَنِ الْإِزَارِ فَقَالَ عَلَى الْخَبِيرِ سَقَطْتَ سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يَقُولُ إِزْرَةُ الْمُؤْمِنِ إِلَى أَنْصَافِ السَّاقَيْنِ لَا جُنَاحَ أَوْ لَا حَرَجَ عَلَيْهِ فِيمَا بَيْنَهُ وَبَيْنَ الْكَعْبَيْنِ مَا كَانَ أَسْفَلَ مِنْ ذَلِكَ فَهُوَ فِي النَّارِ لَا يَنْظُرُ اللَّهُ إِلَى مَنْ جَرَّ إِزَارَهُ بَطَرًا
It is narrated from Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) that when he was asked about the lower garment (tehband), he said to the questioner: "You have indeed asked a well-informed person. I heard the Messenger of Allah (peace and blessings be upon him) say: The lower garment of a believer should reach to the middle of his shin, and there is no sin or harm if it is between the middle of the shin and the ankles. However, the part of the lower garment that is below the ankles will be in the Fire, and Allah Almighty will not look at the one who drags his lower garment out of pride."