If one enters the mosque while the imam is praying tarawih, does he pray 'Isha' alone or does he pray with the imam?
Machine translationRead the Arabic original
The questioner : Okay, may I ask another question, Shaykh?
The Shaykh : It is not possible.
The questioner : The person entered with the imam while he was praying tarawih and did not pray 'Isha'.
The Shaykh : Hmm?
The questioner : I say the person entered the mosque and the imam is praying tarawih and has not prayed 'Isha'; what is the ruling, does he pray on his own or does he join with the intention of 'Isha?
The Shaykh : With the imam, with the intention of 'Isha.
The questioner : Okay, Shaykh, when he finishes, does he come to pray the rawatib of 'Isha or does he continue with the tarawih?
The Shaykh : Meaning, he intends it as the rawatib instead of 'Isha.
The questioner : He goes to pray 'Isha.
The Shaykh : The first part, yes, he joins with the imam and intends it as the rawatib of 'Isha.
The Shaykh : It is not possible.
The questioner : The person entered with the imam while he was praying tarawih and did not pray 'Isha'.
The Shaykh : Hmm?
The questioner : I say the person entered the mosque and the imam is praying tarawih and has not prayed 'Isha'; what is the ruling, does he pray on his own or does he join with the intention of 'Isha?
The Shaykh : With the imam, with the intention of 'Isha.
The questioner : Okay, Shaykh, when he finishes, does he come to pray the rawatib of 'Isha or does he continue with the tarawih?
The Shaykh : Meaning, he intends it as the rawatib instead of 'Isha.
The questioner : He goes to pray 'Isha.
The Shaykh : The first part, yes, he joins with the imam and intends it as the rawatib of 'Isha.
Source
قناة «فضيلة الشيخ محمد بن صالح العثيمين»، 553- من دخل المسجد والإمام يصلي التراويح هل يصلي العشاء منفردا ام يصلي مع الإمام — youtube.com
The Arabic text is a machine transcription of the audio recording.