When Hazrat Sa’d (radhiyallahu ‘anhu) and his brother, Hazrat ‘Umair (radhiyallahu ‘anhu), the two sons of Abu Waqqaas, performed Hijrah from Makkah Mukarramah to Madinah Munawwarah, they stayed in the home and orchard of their brother, ‘Utbah bin Abi Waqqaas. ‘Utbah had built his home among the Banu ‘Amr bin ‘Auf clan. ‘Utbah had shed a person’s blood in Makkah Mukarramah and had thus fled to Madinah Munawwarah where he settled among the Banu ‘Amr bin ‘Auf clan. This was before the incident of Bu‘aath (the battle between the Aws and Khazraj tribes of Madinah Munawwarah). (ibn Sa’d 3/103)
Note:
1. Hazrat ‘Umair (radhiyallahu ‘anhu), the brother of Hazrat Sa’d (radhiyallahu ‘anhu), was martyred in the Battle of Badr at the age of sixteen. (Isaabah 4/602)
2. ‘Utbah bin Abi Waqqaas did not accept Islam. In fact, he was responsible for breaking a portion of the blessed tooth of Rasulullah (sallallahu ‘alaihi wasallam) during the Battle of Uhud. Rasulullah (sallallahu ‘alaihi wasallam) had cursed him and before the year could terminate, he died on disbelief. (Isaabah 5/197)
Source: Whatisislam.co.za