What is the ruling on enjoining good and forbidding evil on Friday while the imam is delivering the sermon?

The Shaykh : The other matter, which is perhaps more important than the previous one, is that we all know that it is not permissible for one who is in the mosque on Friday to enjoin good and forbid evil, even though both are obligatory. This is based on the saying of the Prophet (peace and blessings be upon him) . Your saying "Be quiet" to someone who is speaking while the imam is delivering the sermon is forbidden. Your telling him to be quiet is, in the explicit wording of this hadith, an act of forbidding evil according to the Prophet (peace and blessings be upon him). If enjoining good and forbidding evil has been lifted from the one in the mosque so that he may devote himself to listening and paying attention to the sermon, how do we interpret the Prophet's (peace and blessings be upon him) command for the one who enters the mosque on Friday to pray two rak'ahs? Is it possible to interpret this command as an order to perform a merely recommended act? He did not allow the one in the mosque to occupy himself with anything that distracts from listening to the imam, not even with the word "Be quiet." So how does he command the one entering the mosque to pray two rak'ahs, which involves occupying a time that is much longer than telling the one he sees speaking to be quiet? This, that, and all these appendages to the command indicate that the greeting of the mosque is not a recommended practice (sunnah) where one is rewarded if he does it and not punished if he leaves it. No, rather the greeting of the mosque is one of the obligations, and I do not hesitate to say it is an obligatory duty (fard) among the obligatory duties, because we mentioned earlier that there is no difference between saying "this is fard" or "this is wajib."