"The Mahdi (Arabic: ٱلْمَهْدِيّ, romanized: al-mahdiyy), meaning “the rightly guided one”, is an eschatological Messianic figure who, according to Islamic belief, will appear at the end of times to rid the world of evil and injustice. In Islam, it is said that he will appear alongside Isa and establish the Divine kingdom of Allah.
There is no direct reference to the Mahdi in the Quran, only in the hadith (the reports and traditions of Muhammad’s teachings collected after his death). In most traditions, the Mahdi will arrive with ‘Isa (Isa) to defeat [the united kafir army who disputed and lied about Isa and kafir army those who disputed and lied about Musa under massih dajjal]] (“the false Messiah”). Several canonical compilations of Hadith do include traditions concerning the Mahdi, although such traditions are notably absent from the two most-revered Sunni compilations, those of Bukhari and Muslim. Many orthodox Sunni theologians accordingly question Mahdist beliefs, but such beliefs form a necessary part of Muslim doctrine. Although the concept of a Mahdi is not an essential doctrine in Islam, it is popular among Muslims"
https://michaelruark.blog/2021/11/13/the-mahdi/
"Belief in the Messiah or Savior, return of Jesus is an essential doctrine in all Abrahamic faith, however, one of the lesser-known aspects of Islam is called al-Madiyyah.
In Arabic, al-Mahdi means, “The Guided One” He is also sometimes referred to by Shi’a Muslims as Sahib Al-Zaman or Al-Mahdi al-Muntadhar which translated means “The Master of the Age” and “The Guided/Awaited One.”"
https://moekhaku.substack.com/p/prophecies-of-jesus-and-imam-mahdi
"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
"Al-Mahdi (meaning “the guided one”) is a righteous leader who will appear in the last days of the Ummah, just before the descent of Jesus, peace be upon him."
https://www.abuaminaelias.com/al-mahdi-promised-caliph/
"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."
https://biblehub.com/kjv/revelation/2.htm
"5He that overcometh, the same shall be clothed in white raiment; and I will not blot out his name out of the book of life, but I will confess his name before my Father, and before his angels."
https://biblehub.com/kjv/revelation/3.htm