'I saw Abu Hurairah hitting his forehead with his hand and saying: "O people of Iraq! Do you claim that I would tell a lie against the Messenger of Allah so that it may be more convenient for you and a sin upon me?' I bear witness that I heard the Messenger of Allah say: 'If a dog licks the vessel of anyone of you, let him wash it seven times.'" (Using translation from Ibn Mājah 363)
رَأَيْتُهُ يَضْرِبُ جَبْهَتَهُ بِيَدِهِ وَيَقُولُ يَا أَهْلَ الْعِرَاقِ تَزْعُمُونَ أَنِّي أَكْذِبُ عَلَى رَسُولِ اللهِ ﷺ لِيَكُنْ لَكُمُ الْمَهْنَأُ وَعَلَيَّ الْإِثْمُ أَشْهَدُ أَنِّي سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ إِذَا انْقَطَعَ شِسْعُ أَحَدِكُمْ فَلَا يَمْشِ فِي الْأُخْرَى حَتَّى يُصْلِحَهَا وَإِذَا وَلَغَ الْكَلْبُ فِي إِنَاءِ أَحَدِكُمْ فَلَا يَتَوَضَّأْ حَتَّى يَغْسِلَهَا سَبْعَ مَرَّاتٍ