"Leave him and do not restrain him." When he had finished he called for a bucket (of water) and poured it over it. [1] Abu 'Abdur-Rahman (An-Nasa'i) said: "Meaning: 'Do not interrupt him.'" [1]The author will cite this narration again in No. 330 as a possible proof for setting the minimum, since it mentions "a bucket" as if this is the minium amount required.  

أَنَّ أَعْرَابِيًّا بَالَ فِي الْمَسْجِدِ فَقَامَ إِلَيْهِ بَعْضُ الْقَوْمِ فَقَالَ رَسُولُ اللَّهِ ﷺ دَعُوهُ لاَ تُزْرِمُوهُ فَلَمَّا فَرَغَ دَعَا بِدَلْوٍ فَصَبَّهُ عَلَيْهِ قَالَ أَبُو عَبْدِ الرَّحْمَنِ يَعْنِي لاَ تَقْطَعُوا عَلَيْهِ  

"A Bedouin urinated in the Masjid, and the Prophet ﷺ ordered that a bucket (be brought) and poured over it."  

بَالَ أَعْرَابِيٌّ فِي الْمَسْجِدِ فَأَمَرَ النَّبِيُّ ﷺ بِدَلْوٍ مِنْ مَاءٍ فَصُبَّ عَلَيْهِ  

"A Bedouin came to the Masjid and urinated, and the people yelled at him, but the Messenger of Allah ﷺ said: 'Leave him alone.' So they left him alone. When he had finished urinating, he ordered that a bucket (be brought) and poured over it."  

سَمِعْتُ أَنَسًا يَقُولُ جَاءَ أَعْرَابِيٌّ إِلَى الْمَسْجِدِ فَبَالَ فَصَاحَ بِهِ النَّاسُ فَقَالَ رَسُولُ اللَّهِ ﷺ اتْرُكُوهُ فَتَرَكُوهُ حَتَّى بَالَ ثُمَّ أَمَرَ بِدَلْوٍ فَصُبَّ عَلَيْهِ  

"A Bedouin stood up and urinated in the Masjid, ans the people started shouting. The Messenger of Allah ﷺ said to them: 'Leave him alone, and spill a bucket of water over his urine. For you have been sent to make things easy for people, you have not been sent to make things difficult.'"  

قَامَ أَعْرَابِيٌّ فَبَالَ فِي الْمَسْجِدِ فَتَنَاوَلَهُ النَّاسُ فَقَالَ لَهُمْ رَسُولُ اللَّهِ ﷺ دَعُوهُ وَأَهْرِيقُوا عَلَى بَوْلِهِ دَلْوًا مِنْ مَاءٍ فَإِنَّمَا بُعِثْتُمْ مُيَسِّرِينَ وَلَمْ تُبْعَثُوا مُعَسِّرِينَ