The first envoy of Islam. Mus'ab Ibn Umair was sent to Madinah by the Prophet (PBUH) where he won a number of followers of Islam. He won the hearts of the Madinites with his piety, uprightness and sincerity. And so they embraced the religion of Allah in flocks. Mus'ab the first envoy of the Prophet (PBUH) succeeded without comparison that he deserved. According to some traditions he introduced the Friday - common Salat but others ascribed it to Asad bin Zurara. Ibn Umair was born and brought up in wealth and luxuries in Makkah, the flower of the Quraish, the most handsome and youthful. When he heard people in Makkah talking about Muhammad (PBUH) the Truthful he became one of the most attentive listeners. One night he went to the Daar al-Arqam and saw the Prophet (PBUH) was meeting his Companions, reciting the Qur'an to them and praying with them to Allah the Most Exalted. Mus'ab had hardly taken his seat and contemplated the verses of the Qur'an recited by the Prophet (PBUH) when his heart became the promised heart that night.