Does one who enters the mosque greet first, or does he pray the greeting of the mosque?

The questioner : Regarding the mosque, if you enter the mosque, do you return the greeting, or do you pray the greeting of the mosque first? The next question.

The Shaykh : Receiving the greeting means you do not return the greeting.

The questioner : Receiving the greeting.

The Shaykh : Yes.

The questioner : The second question: You entered the mosque and found a second congregation; do you pray with them, or do you pray alone?

The Shaykh : ... Be kind to us!!
The Shaykh: The first question: It varies depending on your situation when you entered the mosque. If you encounter some of the worshippers in the mosque, it is obligatory for you to initiate the greeting to them, then you pray the greeting of the mosque. However, if they are in a corner of the mosque and you are at the other end, you pray the greeting of the mosque before anything else. If you then encounter someone, or if someone greets you, you return the greeting or receive the greeting. This is the answer to the first question.