Al-Adab Al-Mufrad, Book 55, Hadith 1301 (In-Book) ⓘ
Al-Hasan said, "'Uthman did not speak on any Jumu'a without commanding the killing of dogs and slaughtering of doves."
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، قَالَ: حَدَّثَنَا يُوسُفُ بْنُ عَبْدَةَ، قَالَ: حَدَّثَنَا الْحَسَنُ قَالَ: كَانَ عُثْمَانُ لاَ يَخْطُبُ جُمُعَةً إِلاَّ أَمَرَ بِقَتْلِ الْكِلاَبِ، وَذَبْحِ الْحَمَامِ.
also referenced under: Hadith 1301 (Reference) & Book 55, Hadith 1301 (English)