who is the servant through whom allah provided the quran
Alexander the Great in the Quran "Dhul-Qarnayn" (the "Two-Horned One" in English) is a person described in the Quran, the sacred scripture believed by Muslims to have been revealed by Allah to Muhammad. The story of Dhul-Qarnayn appears in seventeen short verses of the Quran, specifically verses 18:83–99 of Surah Al-Kahf. Dhul-Qarnayn is mentioned in only one place in the Quran, unlike the more familiar stories that are repeated throughout the text (for example, Jesus is mentioned in 93 verses in 15 different surahs of the Quran). The Quranic story describes a man called Dhul-Qarnayn (meaning "the Two-Horned"), who was already familiar to the inhabitants of the region, to whom Allah gave great power, and who traveled to a place, where it appeared to him as if the sun was setting in a murky (or boiling) sea. At this place, Dhul-Qarnayn builds a wall in order to enclose the nations of Gog and Magog. It is thought that Gog and Magog will breach Dhul-Qarnayn's wall before Yaum al-Qiyāmah (the Day of Judgement) and will wreak havoc in the world (Islamic Armageddon):