Observing The Voluntary Prayer In Congregation
Ibn Taymiyyah (d. 728H),
"Coming together in order to perform a voluntary Prayer in congregation is sometimes recommended as long as it is not taken as a continuous practice and there is a benefit in it, such as if the individual is unable to pray properly alone or he does not have the willpower by himself. In these situations it is better to pray in congregation as long as it does not become a habit. Similarly, it is preferred to do this in the house unless there is a greater advantage in doing otherwise."
[Refer to Mukhtaṣir al-Fatāwā al-Miṣrīyyah (p. 81) of Ibn Taymiyyah | Book: A Description Of The Supererogatory (Sunnah) Prayers, p. 66 | By Shaykh Muḥammad Ibn 'Umar Bāzmūl | Translation by Abū 'Abdillāh Ḥasan as-Somalī | Published by: Hikmah Publications]