Once the Prophet ﷺ went to the dumps of some people and passed urine while standing. He then asked for water and so I brought it to him and he performed ablution.  

أَتَى النَّبِيُّ ﷺ سُبَاطَةَ قَوْمٍ فَبَالَ قَائِمًا ثُمَّ دَعَا بِمَاءٍ فَجِئْتُهُ بِمَاءٍ فَتَوَضَّأَ