Congregational Prayer and Its Virtue
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 57
مَا رَوَاهُ جَمِيلُ بْنُ دَرَّاجٍ عَنْ زُرَارَةَ عَنْ أَحَدِهِمَا عَلَيْهِمَا اَلسَّلاَمُ قَالَ: سَأَلْتُهُ عَنْ رَجُلٍ يُصَلِّي بِقَوْمٍ رَكْعَتَيْنِ ثُمَّ أَخْبَرَهُمْ أَنَّهُ لَيْسَ عَلَى وُضُوءٍ قَالَ «يُتِمُّ اَلْقَوْمُ صَلاَتَهُمْ فَإِنَّهُ لَيْسَ عَلَى اَلْإِمَامِ ضَمَانٌ.
Jamil ibn Darraj narrated from Zurarah, from one of the Imams عليه السلام who said: "I asked him about a man who leads a congregation for two rak'ahs and then informs them that he was not in a state of wudu' (ritual purity). Imam عليه السلام said: 'The congregation should complete their prayer because the Imam bears no responsibility (for their prayers).'".
- Ṣaḥīḥ al-Faqīh, p. 58