Praying in congregation at a rest stop while hearing the adhan

Question:
He says: We are a group that gathers at a rest stop, and when the mu'adhdhin calls the adhan, we pray at the rest stop without going to the mosques. Is it obligatory for us to pray in the mosque when we hear the mu'adhdhin, or is it permissible for us to gather at the rest stops?

Answer:
If you hear the adhan near you, it is not permissible for you to pray at the rest stop; rather, it is obligatory for you to go to the nearby mosque. The Prophet (peace and blessings be upon him) said: "Whoever hears the call and does not respond, there is no prayer for him except one who has an excuse." It was asked: "What is the excuse?" He said: "Fear or illness." The Prophet (peace and blessings be upon him) intended to go to those who lagged behind in the Fajr prayer and burn their houses down with fire, even though these houses might contain many men who pray in them. They pray in them, but it is not permissible for them to leave the mosque and pray in their houses while they hear the adhan. Yes.