Mu'awiya ibn Hudayj said, "I came to 'Umar ibn al-Khattab, may Allah be pleased with him, and asked him for permission to enter. They told me, 'Stay where you are until he comes to you.' I sat down near his door." He continued, "'Umar came out to me, called for water and did wudu'. Then he wiped over his leather socks. I said, 'O Amir al'-Mu'minin, is this on account of urine?' He replied, 'On account of urine or other things.'"  

عَنْ أَبِيهِ قَالَ قَدِمْتُ عَلَى عُمَرَ بْنِ الْخَطَّابِ رَضِيَ اللَّهُ عَنْهُ فَاسْتَأْذَنْتُ عَلَيْهِ فَقَالُوا لِي مَكَانَكَ حَتَّى يَخْرُجَ إِلَيْكَ فَقَعَدْتُ قَرِيبًا مِنْ بَابِهِ قَالَ فَخَرَجَ إِلَيَّ فَدَعَا بِمَاءٍ فَتَوَضَّأَ ثُمَّ مَسَحَ عَلَى خُفَّيْهِ فَقَالَ يَا أَمِيرَ الْمُؤْمِنِينَ أَمِنَ الْبَوْلِ هَذَا؟ قَالَ مِنَ الْبَوْلِ أَوْ مِنْ غَيْرِهِ