What is the ruling on the prayer of the two festivals and the greeting of the mosque?

The Shaykh : ... If we understand this, then regarding the prayer of the two festivals, if it is said to be obligatory or mandatory, and the meaning is the same as we mentioned, does this contradict the saying of the Prophet (peace and blessings be upon him) to that Bedouin man ? Likewise, if it is said that the greeting of the mosque is obligatory, which is the truth that nothing from the Sunnah contradicts, due to his saying (peace and blessings be upon him): And in the other narration, confirming the first narration: . This is his command (peace and blessings be upon him), and the command implies obligation, especially when accompanied by an emphasis on this matter that goes beyond the command itself, as came in this hadith, which is in the two Sahihs from the hadith of Abu Qatadah al-Ansari (may Allah be pleased with him). He entered the Prophet's Mosque one day while the Messenger of Allah (peace and blessings be upon him) was sitting with some of his Companions around him. Abu Qatadah joined these Companions and sat among them, listening to the dhikr, listening to the admonition. The Prophet (peace and blessings be upon him) knew this; when he saw him (peace and blessings be upon him), he said to him: . And I mention beforehand that this is not the following hadith of Abu Salik al-Ghatafani. He stood up to pray, and on this occasion the Prophet (peace and blessings be upon him) said: . And the other narration, as we mentioned: . The point is that with this command, there was attention to Abu Qatadah sitting before the greeting, and the Prophet (peace and blessings be upon him) did not remain silent about it, knowing what he taught us, which is that the greeting of the mosque is a matter that a Muslim should not neglect. So he asked, "Did you pray two rak'ahs?" He said, "No." He said, "Stand up and pray" . Then he mentioned this hadith, and then comes another confirmation that this command is not for recommendation, even if it were a strongly recommended practice, but rather for obligation. The hadith of Salik al-Ghatafani: when he came and the Messenger of Allah (peace and blessings be upon him) was delivering the Friday sermon, he sat down. So he (peace and blessings be upon him) said to him: . He said, "No." He said: . Then he turned to the audience of those sitting and listening to the sermon of the Prophet (peace and blessings be upon him), addressing them all to remove a doubt that might occur and had actually occurred. This is part of the perfection of this blessed Shari'ah, where he (peace and blessings be upon him) directed that general address and said: . He addressed the sitters with this address to remove a doubt that might arise and had actually arisen. It was said in some books that this was for a specific reason. What is this reason? It was said, and the conclusion is that this command directed to Salik al-Ghatafani was a specific command for him. So the Prophet (peace and blessings be upon him) refuted this doubt in advance by directing the command to the entire Ummah collectively , meaning to make them brief, to make the recitation in them brief, not to shorten the pillars without which the prayer is not valid. Here is another matter, different from the other matter mentioned previously in the hadith of Abu Qatadah, which indicates the attention of the Wise Lawgiver to this greeting. First, we found that the Prophet (peace and blessings be upon him) interrupted his sermon, in which he was walking, when he saw a Muslim sitting in the mosque before praying the greeting. But he (peace and blessings be upon him), out of his caution and mercy for his Ummah, did not immediately order him to stand up, considering the possibility that he might have already prayed. So he asked him: . He said, "No." So he ordered him and said to him, "Stand up and pray two rak'ahs." This interruption of the sermon by him (peace and blessings be upon him) is another indication of the importance of the greeting of the mosque ... .