Voluntary prayers are not performed in the prohibited times, and what is excepted from that

Question:
May Allah reward you with good, and may He do you good. Is the greeting of the mosque prayed at all times upon entering the mosque, or is it not permissible in some times, such as after the 'Asr prayer, after the Fajr prayer, and the times in which we are forbidden from praying? May Allah reward you with good.

Answer:
This is as we have previously mentioned: the scholars are divided into two groups on this issue. The majority of them hold that voluntary prayers are not performed in the prohibited times, except for the two rak'ahs of tawaf (circumambulation of the Ka'bah), based on the saying of the Prophet (peace and blessings be upon him) . As for the other voluntary prayers, they are not performed, except for making up the two rak'ahs of Fajr. The Prophet (peace and blessings be upon him) saw a man praying after Fajr, so he asked him, and he said, "I did not pray the regular voluntary prayer before Fajr." So the Prophet (peace and blessings be upon him) left him as he was. This falls under the category of making up a missed obligation. This is one opinion.
The second opinion is that prayers with specific causes are performed absolutely, whether in the prohibited times or otherwise, when their causes occur. For example, the eclipse prayer, the greeting of the mosque, the two rak'ahs of tawaf, and the two rak'ahs of wudu' (ablution)—the two rak'ahs after wudu'. They said that when these causes occur, the prayers linked to them are performed, due to the generality of the command of the Prophet (peace and blessings be upon him) regarding them.
And he (peace and blessings be upon him) said, "When one of you enters the mosque, let him not sit until he prays two rak'ahs." They said this is general for all times, like his saying (peace and blessings be upon him) regarding the eclipse, "The eclipse of the sun and the moon," . They said this is general. The first group said this is a general statement that is specified, meaning it is specified by the prohibited times, so it is not performed in them. In any case, the matter is broad in this regard. Praise be to Allah. Yes.