Chapter on Sacrificial Offerings
Man Lā Yaḥḍuruh al-Faqīh|Volume 2|Book 3|Chapter 136
وَ سَأَلَ مُحَمَّدٌ اَلْحَلَبِيُّ أَبَا عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ: عَنِ اَلنَّفَرِ تُجْزِيهِمُ اَلْبَقَرَةُ فَقَالَ «أَمَّا فِي اَلْهَدْيِ فَلاَ وَ أَمَّا فِي اَلْأَضْحَى فَنَعَمْ وَ يُجْزِي اَلْهَدْيُ عَنِ اَلْأُضْحِيَّةِ ».
Muhammad al-Halabi asked Abu Abdullah عليه السلام about a group of people—does a cow suffice for them? Imam عليه السلام replied: "As for the hady (sacrificial offering for Hajj), no. But as for the sacrifice (Udhiyah), yes. And the hady suffices in place of the sacrifice."
- Ṣaḥīḥ al-Faqīh, p. 174