Sahih al-Bukhari
Sahih al-Bukhari 174
Book 4: Ablutions (Wudu')
Chapter 33.1 If a dog drinks from the utensil of any one of you then it is essential to wash it seven times
باب إِذَا شَرِبَ الْكَلْبُ فِي إِنَاءِ أَحَدِكُمْ فَلْيَغْسِلْهُ سَبْعًا
Sahih al-Bukhari 174
And narrated
Hamza bin ‘Abdullah: My father said. “During the lifetime of Allah’s
Apostle, the dogs used to urinate, and pass through the mosques (come
and go), nevertheless they never used to sprinkle water on it (urine
of the dog.)”
وَقَالَ أَحْمَدُ بْنُ شَبِيبٍ حَدَّثَنَا أَبِي، عَنْ يُونُسَ، عَنِ ابْنِ شِهَابٍ، قَالَ حَدَّثَنِي حَمْزَةُ بْنُ عَبْدِ اللَّهِ، عَنْ أَبِيهِ، قَالَ كَانَتِ الْكِلاَبُ تَبُولُ وَتُقْبِلُ وَتُدْبِرُ فِي الْمَسْجِدِ فِي زَمَانِ رَسُولِ اللَّهِ صلى الله عليه وسلم فَلَمْ يَكُونُوا يَرُشُّونَ شَيْئًا مِنْ ذَلِكَ.
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