The False Messiah (al-Masih al-Dajjal), the reason for his name, the time of his appearance, the severity of his trial, his followers, and how to be saved from him

Question:
May Allah reward you. In his other question, he asks: What is the False Messiah (al-Masih al-Dajjal)? When will he appear? What is the reality of the trial (fitnah) that accompanies him? And what is the phrase by which Muslims seek refuge from him?

Answer:
The False Messiah (al-Masih al-Dajjal) is the deceiver who will emerge in the end times. He is called "al-Masih" (the Messiah) because he sweeps across the earth with great speed. It is also said he is called "al-Masih" because his eye is wiped out, for he is one-eyed, may Allah curse him, so his eye is wiped out. "Al-Dajjal" is a title derived from "dajal," which means falsehood, because he is a liar; he is a liar in everything he says and everything he does. Allah will send him in the end times as a sign of the nearness of the Hour. His appearance is among the major signs of the Hour. He will be accompanied by a great trial (fitnah); he will be accompanied by a great trial. He will have supernatural phenomena that Allah has granted him for the sake of the trial, for the purpose of the trial, and to test people. Those with weak faith or those driven by desires will follow him, may Allah protect us, being deceived by the wealth and the temptations he possesses. Only those with sound faith will be safe from him. In the name of Allah, the Most Gracious, the Most Merciful.
Therefore, every prophet, peace and blessings be upon them, warned his community about al-Dajjal. Our Prophet (peace and blessings be upon him) was the most of the prophets to warn about al-Dajjal, because he is the last of the prophets, peace and blessings be upon him, and because al-Dajjal will appear in his community in the end times. The supplication, as the Prophet (peace and blessings be upon him) guided, is to say in every prayer, in the final tashahhud after the prayer, after the salutations upon the Prophet (peace and blessings be upon him): "O Allah, I seek refuge in You from the punishment of the Hellfire, from the trial of life and death, and from the trial of the False Messiah (al-Masih al-Dajjal)." This is in every prayer, whether obligatory or voluntary. It has also been reported that whoever encounters him should recite the first ten verses of Surat al-Kahf, or, in another narration, the last ten verses of Surat al-Kahf. Whoever recites these verses will be protected from al-Dajjal. Yes.