The ruling on praying the greeting of the mosque during the prohibited times

Question:
Yes, publicizing it is not correct, given that you are in the mosque at this time.

Answer:
There is scholarly disagreement on this, so one does not criticize the one who performs it, nor the one who leaves it, because the issue is a matter of disagreement. Also, it is a recommended practice (sunnah), not obligatory. It is permissible to perform a recommended practice, and it is permissible to leave it. The one who performs it has fulfilled an obligation, and the one who leaves it owes nothing. The matter is broad in this regard, and praise be to Allah. Some of the brothers are strict about it and declare the one who does not pray the greeting of the mosque during the prohibited times to be an innovator. This is not permissible. These are matters of scholarly disagreement, and they are places for independent legal reasoning (ijtihad) and consideration based on the texts, because the texts differ on this: there are texts prohibiting it and texts commanding it. Some scholars prioritize the texts of command, and some prioritize the texts of prohibition. It is a matter of disagreement, and each has his own perspective. Also, the issue is recommended; this sunnah is recommended, and one should not confront [the one who leaves it].
Even if the scholars agreed on performing it during the prohibited times, and it is recommended, it is permissible to perform it, because it is permissible to perform a recommended practice, so there is no blame on him for this.