What is the ruling on gathering to stand in night prayer on one night of every month without specifying a particular night?

Question:
May Allah reward you. The questioner asks: What is the ruling on gathering to stand in night prayer on one night of every month without specifying a particular night?

Answer:
It is not permissible to arrange this if it is a regular occurrence, meaning they gather and pray in congregation at night for standing in night prayer every month. This is a bid'ah (religious innovation). A Muslim prays, he prays. Whoever stands in night prayer does what is easy for him, and he does not gather with anyone to form a regular congregation once or twice a month. This is a bid'ah, except in Ramadan. This is specific to Ramadan. Outside of Ramadan, no. However, if it happens that they gather and pray on some occasions without arrangement and without intending this, there is no harm. Sometimes, without arrangement and without intending this, yes.