The Prayer of Greeting the Mosque in the Times of Prohibition

Question:
Yes, the publicizing of it is not correct, given that any mosque is at any time.

Answer:
There is scholarly disagreement on this, so one does not condemn the one who performs it, nor the one who leaves it, because the issue is disputed. Also, it is a recommended practice (sunnah), not obligatory. It is permissible to perform it and permissible to leave it. Whoever performs it gets reward, and whoever leaves it owes nothing. Yes, the matter is broad in this regard, and praise be to Allah. Some of the brothers are strict about this and declare innovators those who do not pray the greeting of the mosque during the prohibited times. Do they call them that?
This is not permissible. The issue is one of scholarly disagreement, and it is a matter of independent legal reasoning (ijtihad) and consideration based on the texts, because the texts differ: there are texts of prohibition and texts of command. Some scholars prioritize the texts of command, and some prioritize the texts of prohibition. The issue is disputed, and each has his point of view. Also, the issue is recommended; this sunnah is recommended, not obligatory.
Even if the scholars agreed on performing it during the prohibited times, and it is recommended, it is permissible to recite it, because it is permissible to recite a recommended practice, so there is no blame in that.