One who prays and then attends the congregation in the mosque
Machine translationRead the Arabic original
Question:
He says: Honorable Shaykh, may Allah grant you success, if a person attends the congregation while they are praying in the mosque, and he has already prayed before that, is it permissible for him to return until they finish their prayer, or is it obligatory for him to pray with them?
Answer:
He does not forbid himself; he prays with them and obtains the reward, and it becomes a voluntary prayer for him. Yes.
He says: Honorable Shaykh, may Allah grant you success, if a person attends the congregation while they are praying in the mosque, and he has already prayed before that, is it permissible for him to return until they finish their prayer, or is it obligatory for him to pray with them?
Answer:
He does not forbid himself; he prays with them and obtains the reward, and it becomes a voluntary prayer for him. Yes.
Source
شرح كتاب المنتقى من أخبار المصطفى صلى الله عليه وسلم، بداية من باب الدخول في الماء بغير إزار — islamhouse.com (1:02:32)
The Arabic text is a machine transcription of the audio recording.