What is the ruling on entering the mosque for prayer during a time disliked for voluntary prayer when the congregation has already started?
Chapter on the Times When Prayer is Prohibited
Al-Mughni
Book of Prayer
Primary text
If the congregational prayer has begun while a person is outside the mosque, and the time is one of the disliked times for voluntary prayer (Awqat al-Nahi), it is not recommended for him to enter the mosque for prayer.