The Prophet ﷺ said: Were dogs not a species of creature I should command that they all be killed; but kill every pure black one.

قَالَ رَسُولُ اللَّهِ ﷺ لَوْلاَ أَنَّ الْكِلاَبَ أُمَّةٌ مِنَ الأُمَمِ لأَمَرْتُ بِقَتْلِهَا فَاقْتُلُوا مِنْهَا الأَسْوَدَ الْبَهِيمَ