I was with the Messenger of Allah ﷺ when he came to the dumping ground of filth belonging to a particular tribe. He urinated while standing, and I went aside. He (the Holy Prophet) asked me to come near him and I went so near to him that I stood behind his heels. He then performed ablution and wiped over his socks.  

كُنْتُ مَعَ النَّبِيِّ ﷺ فَانْتَهَى إِلَى سُبَاطَةِ قَوْمٍ فَبَالَ قَائِمًا فَتَنَحَّيْتُ فَقَالَ ادْنُهْ فَدَنَوْتُ حَتَّى قُمْتُ عِنْدَ عَقِبَيْهِ فَتَوَضَّأَ فَمَسَحَ عَلَى خُفَّيْهِ  

"Messenger of Allah came to a waste area used by people, so he urinated on it while standing. I brought him the (water for) Wudu. Then I left to be away from him, but he called me until I was behind him. So he performed Wudu and wiped (Masaba) over his Khuff."  

أَنَّ النَّبِيَّ ﷺ أَتَى سُبَاطَةَ قَوْمٍ فَبَالَ عَلَيْهَا قَائِمًا فَأَتَيْتُهُ بِوَضُوءٍ فَذَهَبْتُ لأَتَأَخَّرَ عَنْهُ فَدَعَانِي حَتَّى كُنْتُ عِنْدَ عَقِبَيْهِ فَتَوَضَّأَ وَمَسَحَ عَلَى خُفَّيْهِ  

"I was walking with the Messenger of Allah ﷺ and he came to some people's garbage dump and urinated while standing up. I turned to go away, but he called me back (to conceal him), and I was just behind him. Then when he had finished, he performed Wudu' and wiped over his Khuffs." (Using translation from Nasāʾī 18)   

كُنْتُ أَمْشِي مَعَ النَّبِيِّ ﷺ فَانْتَهَى إِلَى سُبَاطَةِ قَوْمٍ فَبَالَ قَائِمًا فَتَنَحَّيْتُ فَدَعَانِي فَقَالَ «ادْنُ» فَدَنَوْتُ حَتَّى قُمْتُ عِنْدَ عَقِبِهِ ثُمَّ تَوَضَّأَ وَمَسَحَ عَلَى خُفَّيْهِ  

"I was walking with the Messenger of Allah ﷺ and he came to some people's garbage dump and urinated while standing up. I turned to go away, but he called me back (to conceal him), and I was just behind him. Then when he had finished, he performed Wudu' and wiped over his Khuffs." (Using translation from Nasāʾī 18)  

«كُنْتُ أَمْشِي مَعَ رَسُولِ اللهِ ﷺ فَانْتَهَى إِلَى سُبَاطَةِ قَوْمٍ فَبَالَ قَائِمًا فَتَنَحَّيْتُ عَنْهُ فَدَعَانِي فَكُنْتُ عِنْدَ عَقِبِهِ حَتَّى فَرَغَ ثُمَّ تَوَضَّأَ وَمَسَحَ عَلَى خُفَّيْهِ»