Al-Kāfi - Volume 6 > The Dogs
Hadith #7

عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ وَ مُحَمَّدُ بْنُ يَحْيَى عَنْ عَبْدِ اللَّهِ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنْ أَبَانٍ عَنْ زُرَارَةَ عَنْ أَحَدِهِمَا ( عليهما السلام ) قَالَ الْكِلَابُ السُّودُ الْبَهِيمُ مِنَ الْجِنِّ .

7. A number of our people have narrated from Ahmad ibn Muhammad from and Muhammad ibn Yahya from ‘Abd Allah ibn Muhammad from Ali ibn al-Hakam from Aban from Zurarah who has said the following: “One of the two Imam, (abu Ja‘far or abu ‘Abd Allah), ‘Alayhim al-Salam, has said that dogs of one color, all black are from Jinn.’”