The ruling on consistently remaining in the mosque after the Fajr prayer

Question:
The second question, may Allah reward you, concerns remaining in the mosque after the Fajr prayer and making it a habit. Is this a sunnah (recommended practice) that is included in the religion, given that he heard from some people that making it a habit is a bid'ah (religious innovation)?

Answer:
No, that statement is a bid'ah (religious innovation); it is that statement itself that is the bid'ah (religious innovation). Making it a habit is a righteous deed, and the Messenger (peace and blessings be upon him) did not prohibit making it a habit. So, whatever a person is able to do to carry out this sunnah (recommended practice) and implement it, it is an increase in good. It is not permissible for anyone to warn people against doing good. The claim that everything is a bid'ah (religious innovation) and that everything is a bid'ah (religious innovation) is never acceptable.
It is permissible to say that something is a bid'ah (religious innovation) or a sunnah (recommended practice) only with evidence. For a person to base a legal ruling on his own understanding, this is not permissible. Yes.