Sayyiduna ‘Umayr ibn Wahb (radi Allahu ‘anhu) was from Makkah al-Mukkaramah and fough against the Muslims in the battle of Badr along with his son. Despite his son having been taken prisoner,  Sayyiduna ‘Umayr ibn Wahb (radi Allahu ‘anhu) himself managed to return home safely. Full of vengeance, he vowed to kill the Prophet (salla Llahu ‘alayhi wa sallam). Only his close friend Sayyiduna Safwan Ibn Umayyah (radi Allahu ‘anhu) knew of his plans.

Upon reaching Madinah al-Munawwarah,  Sayyiduna ‘Umayr ibn Wahb (radi Allahu ‘anhu) was detected by  Sayyiduna ‘Umar (radi Allahu ‘anhu) and brought before the Messenger of Allah (salla Llahu ‘alayhi wa sallam).  Sayyiduna ‘Umayr ibn Wahb (radi Allahu ‘anhu) pleaded that he had no ill intention in coming to Madinah al-Munawwarah, but was shocked when the Prophet (salla Llahu ‘alayhi wa sallam) relayed the details of his conversations with  Sayyiduna Safwan Ibn Umayyah (radi Allahu ‘anhu). He knew that only Allah ta’ala could have revealed this information to the Prophet (salla Llahu ‘alayhi wa sallam) and accepted Islam immediately.

 Sayyiduna ‘Umayr ibn Wahb (radi Allahu ‘anhu) remained in Madinah al-Munawwarah and increased his knowledge of his new faith. He was given exceptional leave by the Prophet (salla Llahu ‘alayhi wa sallam) to return to Makkah al-Mukkaramah where he successfully called many people to Islam.