The innovation of celebrating the end of the Gregorian year, which is the birth of Isa (peace and blessings be upon him), and the refutation of them with evidence for that.

The Shaykh : And near the end of the Gregorian year, there will be another celebration. A religious celebration, not a celebration of a time or a date. No. A religious celebration of what? Of what they call the birth of the Messiah, Isa ibn Maryam (peace be upon him), whom we believe in and they do not believe in. Oh, the wonder of it! The Muslims believe in the Messiah, and the Christians do not believe in him. I say this because I have evidence for it. I have evidence from the speech of Allah. And I have evidence from the actions of the Christians themselves. Did you hear the speech?
I say: As for the evidence from the Book of Allah, listen to the saying of Allah the Exalted in Surat al-Saff: And after that? The messenger who came after him, whose name is Ahmad? Muhammad (peace and blessings be upon him). No one came. There is no prophet or messenger between Muhammad and Isa. And what is found in some history that there were prophets like Khalid ibn Sinan or others is a lie. There is no one from the messengers between Muhammad and Isa. Good, He gave them glad tidings of him, so when he came, they disbelieved in him. So He gave them glad tidings of him so that when he came, they would warn against him and disbelieve in him, or so that when he came, they would receive him with gladness and joy and believe in him? Which of the two? A weak answer, this, my brothers. The second one, or the first? The second. So how does He give them glad tidings of something and say, "Do not believe in it"? This is impossible. He gave them glad tidings so that when he came, they would receive him with gladness and joy. Muhammad came, and as He said, listen to the saying of Allah: What? . They will find him written among them in the Torah and the Gospel, commanding them to do what is right and forbidding them from what is wrong, and making lawful for them the good things and forbidding them the bad things. This is found in the Torah and the Gospel, and it has been transmitted until now, as transmitted by the author of al-Manar, Muhammad Rashid Rida (may Allah have mercy on him), who is a famous scholar among the scholars of Egypt. When He came to them with clear proofs. What did they say? Did they believe? Answer, my brothers. They disbelieved. They said: . So did they believe in Isa or disbelieve in Isa? They disbelieved in Isa. He gave them glad tidings, and they did not accept it; rather, they disbelieved in what their prophet Isa (peace and blessings be upon him) gave them glad tidings of. And ask the Christians: Are the Jews disbelievers or believers? What does a Christian say about a Jew? A disbeliever. Why? Because he disbelieved in the Gospel that was revealed after the Torah. And we, as I told you, use their actions as evidence of their disbelief. So when the Jews disbelieved because they disbelieved in the Gospel, we declare them disbelievers because they disbelieved in what? In the Qur'an. And their disbelief in the Qur'an is disbelief in the Gospel and the Qur'an.