However , Sprenger points out that Bilal , being ancestrally Abyssinian , was probably a Christian before he was a Muslim .
It may be possible that Umayyah was persecuting him for this reason before 610 .
However , Sprenger points out that Bilal , being ancestrally Abyssinian , was probably a Christian before he was a Muslim , and it may be possible that Umayyah was persecuting him for this reason before 610 .