Al-Kāfi - Volume 6 > The Time in which Slaughtering is not Desirable
Hadith #2

عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ مُحَمَّدِ بْنِ عَلِيٍّ عَنْ مُحَمَّدِ بْنِ عَمْرٍو عَنْ جَمِيلِ بْنِ دَرَّاجٍ عَنْ أَبَانِ بْنِ تَغْلِبَ عَنْ أَبِي عَبْدِ اللَّهِ ( عليه السلام ) قَالَ كَانَ عَلِيُّ بْنُ الْحُسَيْنِ ( عليه السلام ) يَأْمُرُ غِلْمَانَهُ أَنْ لَا يَذْبَحُوا حَتَّى يَطْلُعَ الْفَجْرُ . فِي نَوَادِرِ الْجُمُعَةِ .

2. A number of our people have narrated from Sahl ibn Ziyad from Muhammad ibn Ali from Muhammad ibn ‘Amr from Jamil ibn Darraj from Aban ibn Taghlib who has said the following: Abu ‘Abd Allah, ‘Alayhi al-Salam, has said that Ali ibn al-Husayn, would command his servants not to slaughter any animal before dawn on Friday. This Hadith is of rare Ahadith about Fridays.’”