al-Arqam ibn Abi al-Arqam

Al-Arqam ibn Abi al-Arqam al-Makhzumi (died ca. 55 AH) was among the earliest converts to Islam and the owner of the most famous house in Islamic history — Dar al-Arqam, the House of Arqam on Mount Safa in Mecca. For approximately three years, this house served as the secret gathering place where the Prophet ﷺ taught the early Muslims, received converts, and built the foundations of the community before it was safe to practice Islam openly.

He accepted Islam as one of the first ten converts, before Islam had spread beyond a small circle of the Prophet's closest companions. His house was chosen because he was from the Makhzum clan, which gave it a degree of tribal protection, and because its location allowed for discreet entry. Many of the early conversions took place in or near that house.

Al-Arqam participated in the Battle of Badr and the subsequent campaigns. He outlived most of the early converts and survived to old age, living into the caliphate of Muawiyah. He reportedly refused to sell the house throughout his life, considering it too significant to part with, though his descendants eventually donated it and it was later incorporated into the Masjid al-Haram's expansion.

The house became so identified with the early Islamic mission that "entering the Arqam house" became a metaphor in Arabic for joining a secret or select gathering. Al-Arqam died in Medina at an advanced age, having witnessed the transformation of Islam from a handful of secret adherents into the governing religion of a vast empire.