The ruling on joining a voluntary congregational prayer and the number of rak'ahs
Machine translationRead the Arabic original
Question:
Honorable Shaykh, if I pray the obligatory prayer and then go to a congregation that has begun their obligatory prayer, for example, and I want to join them in a voluntary prayer, and they have already prayed one rak'ah, do I say the opening takbir with them, or do I complete four rak'ahs, or do I limit it to just two?
Answer:
No, you join them. The voluntary prayer is four rak'ahs, because your ruling is the ruling of the imam. In this case, your ruling is the ruling of the imam. So you complete the prayer with four rak'ahs, according to the voluntary prayer. Yes.
Honorable Shaykh, if I pray the obligatory prayer and then go to a congregation that has begun their obligatory prayer, for example, and I want to join them in a voluntary prayer, and they have already prayed one rak'ah, do I say the opening takbir with them, or do I complete four rak'ahs, or do I limit it to just two?
Answer:
No, you join them. The voluntary prayer is four rak'ahs, because your ruling is the ruling of the imam. In this case, your ruling is the ruling of the imam. So you complete the prayer with four rak'ahs, according to the voluntary prayer. Yes.
Source
شرح بلوغ المرام من أدلة الأحكام [ صالح الفوزان ]، تابع باب الأذان - 1 — islamhouse.com (56:12)
The Arabic text is a machine transcription of the audio recording.