Chapter: A female slave, whose husband is a slave, has the option to keep him or leave him (when she is manumitted).

I saw him as a slave, (namely, Barira's husband).

That was Mughith, the slave of Bani so-and-so, i.e., Barira's husband as if I am now looking at him following her (Barira) along the streets of Medina.

Barira's husband was a black slave called Mughith, the slave of Bani so-and-so-- as if I am seeing him now, walking behind her along the streets of Medina.