Nahj al-Balāgha

Hadith 1439
congregational-prayerrights
وَاللهَ اللهَ فِي الصَّلَاةِ، فَإِنَّهَا عَمُودُ دِينِكُمْ.
(Fear) Allāh (and) keep Allāh in view in the matter of prayer, because it is the pillar of your religion.
Source: al-Sharīf al-Raḍī