Prayer: Obligatory and Recommended Acts, Adhan, and Congregation in Salat al-Ayat
Practical Laws of Islam as per the teachings of Ayatullah Sistani
Ruling 1489
Those things that are obligatory and recommended in the daily prayers are also obligatory and recommended in ṣalāt al‑āyāt. However, adhān and iqāmah are not said for ṣalāt al‑āyāt, and if the prayer is performed in congregation, it is better one say ‘aṣṣalāh’ three times with the intention of rajāʾ instead of adhān and iqāmah; this does not apply if the prayer is not performed in congregation. The legality of performing ṣalāt al‑āyāt in congregation for phenomena other than solar and lunar eclipses is not established [i.e. it must not be performed in congregation for other than these phenomena].