"mahdī, (Arabic: “guided one”) in Islamic eschatology, a messianic deliverer who will fill earth with justice and equity, restore true religion, and usher in a short golden age lasting seven, eight, or nine years before the end of the world. The Qurʾān does not mention him."
https://www.britannica.com/topic/mahdi
"26And he that overcometh, and keepeth my works unto the end, to him will I give power over the nations: 27And he shall rule them with a rod of iron; as the vessels of a potter shall they be broken to shivers: even as I received of my Father. 28And I will give him the morning star. 29He that hath an ear, let him hear what the Spirit saith unto the churches."
https://biblehub.com/kjv/revelation/2.htm
"the Mahdi is not mentioned in the Qur’an and his mention in the Sunnah is less substantiated and his role is much less central than those of Jesus as a portent of the Last Day. The Mahdi will be only such a just ruler who will rule towards the end of the world and he will be one of Jesus’ aides."
https://www.islamforchristians.com/jesus-christ-antichrist-mahdi/