The ruling on one who prays the obligatory prayer and then enters the mosque and finds them praying

The questioner:
Abd al-Rahman from Asir, please, Abd al-Rahman. Peace be upon you. And upon you be peace, please go ahead. One question. Please go ahead. The question is: We have a mosque where we pray the obligatory prayer, specifically the Isha prayer, and we advance it by ten minutes because we go to a second mosque to pray the tarawih. We arrive at the second mosque after the prayer has sometimes not yet begun. And we are present there. So, do we pray with them, meaning we enter with the intention of the voluntary prayer? Or do we wait until they pray the obligatory prayer and then join them in the tarawih?

The Shaykh:
You pray in your mosque and you advance it? You do not advance it before the time, my brother.

The questioner:
No, no, we do not advance it. I mean, ten minutes after the time. We do not advance it significantly. I mean, instead of waiting ten or twenty minutes, we wait ten minutes and pray.

The presenter:
Listen to the answer, Abd al-Rahman.

The questioner:
The tarawih is in the second mosque.

The presenter:
Let us hear the answer, Abd al-Rahman.

The Shaykh:
If you have prayed in your mosque and you come and the tarawih is being established, enter with the imam in the tarawih, yes.