In one of the congregations, the khatib delivered only one sermon out of ignorance or forgetfulness; what is the ruling on our prayer?

The questioner:
He says: Honorable Shaykh, may Allah grant you success, in one of the congregations the khatib prayed with us and delivered only one sermon out of his ignorance or forgetfulness?

The Shaykh:
We ask Allah for safety.

The questioner:
He says: What is the ruling on your prayer?

The Shaykh:
It is not out of ignorance or forgetfulness; they are doing it deliberately. These are self-taught people who have now appeared among the people, wanting to go against what others are upon. They deliver only one sermon, but the Friday prayer is not valid except with two sermons, as the Prophet (peace and blessings be upon him) used to do, and all his successors. All Muslims deliver two sermons; this is scholarly consensus. Therefore, this anomaly is not permissible. However, these self-taught people are a danger to the Ummah. These self-taught people are a danger to the Ummah because they mislead them, so they must be restrained. Yes.