Sayyidina Hazrat Bilal was an Abyssinian slave belonging to a Jew called Umayya Bin Khalf, who was a bitter enemy of Islam.
He embraced Islam in its early days, during times when the non-believers would continuously harass the Muslims and never allow them a moment of peace.
Hazrat Bilal’s love for Allah and the Holy Prophet (s.a.w) will always remain a perfect example of devotion and total submission.