Is it permissible for me to pray 'Isha' with a group that combined Maghrib and 'Isha' if I am not convinced by that?

Question:
This person asks a question similar to this: If the people in our mosque combine Maghrib with 'Isha', or 'Isha' with Maghrib, and I am not convinced by this combining, is it permissible for me to pray 'Isha' with them?

Answer:
You are convinced by the Sunnah, so what are you convinced of? The combining, my brother, is a Sunnah. That means Allah the Exalted has made things easy for the people, so it is established by the Sunnah. How can you not be convinced by it? How can you not be with the Muslims? Praying with the Muslims is the norm. Yes, but perhaps he means he is not convinced by the excuse that occurred, that it did not call for combining, that it did not call for combining. If that is his intention, if you are not convinced by the excuse, do not combine. But if your intention is that you are not at all reassured by the combining itself, and you say that it has no basis and that this is problematic. Yes.