(499) بَابُ إِذَا اسْتَأْذَنَ، فَقَالَ: حَتَّى أَخْرُجَ، أَيْنَ يَقْعُدُ؟
Mu'awiya ibn Hudayj said, "I came to 'Umar ibn al-Khattab, mayAllah be pleased with him, and asked him for permission to enter. Theytold me, 'Stay where you are until he comes to you.' I sat down near hisdoor." 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, isthis on account of urine?' He replied, 'On account of urine or other things.'"
Reference: Al-Adab Al-Mufrad 1079
In-book reference: Book 43, Hadith 29
English translation: Book 43, Hadith 1079