The Life of al-Khidr and the Dajjal, and the Hadith of the Head of the Century

Question:
Then from the Mushaf, Ibn Fadilah, this questioner says: Are there two men? And is the excellence over the others? And what is the relation of that to the oath of the Prophet (peace and blessings be upon him)? Because at the head of it is a worker from the knowledge that the Prophet (peace and blessings be upon him) narrated that one of those who are upon the excellence remains at the head of the excellence, one of those who are upon the two.

Answer:
Yes, as for al-Khidr, he is dead. Whoever says that he is alive is wrong; he is not alive, he is dead. This is because Allah, Glorified and Exalted is He, says: And if al-Khidr were alive, he would have come to the Prophet (peace and blessings be upon him), because the Messenger (peace and blessings be upon him) was sent to all people. So if he were alive, he would have come to the Prophet (peace and blessings be upon him). Therefore, al-Khidr is dead, and those who believe that he is alive are holding to a superstition. As for the Dajjal, Allah knows best. The hadith of al-Jusayyir in the Sahih indicates that he is alive and that he is in a specific place, as mentioned in the hadith, and Allah knows best.
As for the hadith of the Messenger (peace and blessings be upon him) that at the head of every hundred years, no one remains alive. This means that lifespans generally do not exceed one hundred years. The general rule is that a person does not live more than one hundred years. Most people do not live to reach one hundred. And if there are exceptions, there is no ruling for the exception; the ruling is for the general case. Yes.