The Ruling on Praying Two Rak'ahs between the Two Khutbahs on Friday

Question :

I have observed in the Friday prayer, during the sitting of the Imam between the two Khutbahs, that some of the worshippers stand up and pray two Rak'ahs then they sit down. What is the ruling on this prayer? And is it permissible for a man to stand up and pray once he has sat down after entering the mosque?

Answer:

This prayer is not legislated. What is prescribed after the Imam enters the mosque is for the people to listen to his Khutbah and to follow their Imam; and in between the two Khutbahs, they should wait for the Imam to deliver the second Khutbah. If they call upon Allah between the two Khutbahs using any supplication they choose, it is good, because this is one of the times when it is hoped that the supplication will be answered. For there is a time on Friday when, if a Muslim. worshipper stands in prayer and asks Allah for anything, Allah will give it to him.

Yes, a person may stand in prayer after he has sat down, in order to perform Tahiyyatul-Masjid because it is reported that a man entered the mosque on Friday while the Prophetwas delivering the Khutbah and he said to him:

"Have you prayed?»

He replied: "No." So the Prophet said:
"Stand up and pray two Rak'ahs.

However, if he sat for a protracted length of time, he should not perform Tahiyyatul-Masjid, because when the time for a Sunnah has passed, the requirement for it is cancelled.

Source:
Ibn 'Uthaimin
Fatawa Islamiyah, Vol. 2 Pages 311-312