The Prayer of the Two Eids
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 79
وَ رَوَى زُرَارَةُ بْنُ أَعْيَنَ عَنْ أَبِي جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ قَالَ: «لاَ صَلاَةَ يَوْمَ اَلْفِطْرِ وَ اَلْأَضْحَى إِلاَّ مَعَ إِمَامٍ عَادِلٍ.
Zurarah bin A'yan narrated from Imam Muhammad ibn Ali Al-Baqir عليه السلام who said: "There is no prayer on the day of Eid al-Fitr and Eid al-Adha except with a just Imam”.
- Ṣaḥīḥ al-Faqīh, p. 72