Abu Huraira reported: A bedouin entered the mosque of the Prophet, peace and blessings be upon him, while the Prophet was sitting. He prayed and when finished he said, “O Allah, have mercy on me and Muhammad and no one else.” The Prophet turned to him and said, “You have restricted something that is vast.” It was not long before he was urinating in the mosque, so the people rushed to him, but the Prophet said, “Pour a bucket or a tumbler of water over it.” Then the Prophet said, “You have been sent to make things easy, and you were not sent to make things difficult.”

Source: Sunan At-Tirmidhi 147

Grade: Sahih (authentic) according to At-Tirmidhi

عَنْ أَبِي هُرَيْرَةَ قَالَ دَخَلَ أَعْرَابِيٌّ الْمَسْجِدَ وَالنَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ جَالِسٌ فَصَلَّى فَلَمَّا فَرَغَ قَالَ اللَّهُمَّ ارْحَمْنِي وَمُحَمَّدًا وَلَا تَرْحَمْ مَعَنَا أَحَدًا فَالْتَفَتَ إِلَيْهِ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَقَالَ لَقَدْ تَحَجَّرْتَ وَاسِعًا فَلَمْ يَلْبَثْ أَنْ بَالَ فِي الْمَسْجِدِ فَأَسْرَعَ إِلَيْهِ النَّاسُ فَقَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَهْرِيقُوا عَلَيْهِ سَجْلًا مِنْ مَاءٍ أَوْ دَلْوًا مِنْ مَاءٍ ثُمَّ قَالَ إِنَّمَا بُعِثْتُمْ مُيَسِّرِينَ وَلَمْ تُبْعَثُوا مُعَسِّرِينَ

147 سنن الترمذي كتاب الطهارة عن رسول الله صلى الله عليه وسلم باب ما جاء في البول يصيب الأرض

قَالَ أَبُو عِيسَى وَهَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ