Is it valid to perform the greeting of the mosque before Maghrib?

Question:
If I enter a mosque before the Maghrib adhan, is it permissible for me to pray, or is it not permissible to bow after the adhan, as some people say?

Answer:
If a person enters the mosque after the 'Asr prayer or after the Fajr prayer, and he enters to prostrate, to read, or to rest, then it is not obligatory upon him; this is the best, the greeting of the mosque. And if he sits, as a group of scholars said, there is no blame on him. It is not befitting to make a show of this or to dispute over it. If he sits, there is no blame on him. And if he prays two rak'ahs when he enters the mosque after the 'Asr prayer or after the Dhuhr prayer, that is better, because of the greeting of the mosque, and because it is one of the prayers with a cause. The stronger view regarding prayers with a cause is that they are valid until the time of the day ends, such as the prayer of the reciters in Makkah; if the sun remains after 'Asr, he prays likewise. If the mosque is after 'Asr or after Fajr, it is better that he prays two rak'ahs and then sits; this is the best, due to the saying of the Prophet (peace and blessings be upon him) This is general, encompassing after the 'Asr prayer and encompassing after the Fajr prayer. And this is the response to the statement of Ayub.