I want to know the real reason we don’t pray salatul isha and asr separately. My parents somewhat explained to me that it’s because it’s was inconvenient for the Muslims to pray them separately and it made it difficult for everyone to pray on time. What is the accurate reason?
It is fine if you pray them separately. We pray together and also separate. Sunni’s also do the same. https://www.al-islam.org/articles/laws-and-practices-why-do-shiah-combine-prayers