Congregational Prayer and Its Virtue
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 57
وَقَالَ رَسُولُ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ: «إِمَامُ اَلْقَوْمِ وَافِدُهُمْ فَقَدِّمُوا أَفْضَلَكُمْ.
The Messenger of Allah صلى الله عليه وعلى آله وسلم said: "The Imam of the people is their representative, so choose the best among you to lead."
- Ṣaḥīḥ al-Faqīh