Reward of offering Salaat in congregation
Thawāb al-Aʿmāl wa ʿiqāb al-Aʿmāl|Volume 1|Book 2|Chapter 96
حَدَّثَنِی أَبِی ره بِإِسْنَادٍ عَنْ عَبْدِ اللَّهِ بْنِ سِنَانٍ قَالَ
قَالَ أَبُو عَبْدِ اللَّهِ ع إِنَّ الصَّلَاهَ فِی الْجَمَاعَهِ تَفْضُلُ عَلَی صَلَاهِ الْفَرْدِ ثلاث [بِثَلَاثٍ] وَ عِشْرِینَ دَرَجَهً تَکُونُ خَمْساً وَ عِشْرِینَ صَلَاهً.
1. Imam Ja’far Sadiq 
says, “The excellence of congregational prayers is twenty three times that of prayer offered alone and this one congregational prayer is equal to twenty five prayers.”
