Harith ibn Harb explained

Ḥārith ibn Ḥarb (Arabic: حارث ابن حرب) was the son of the 7th century Arabian Meccan leader Harb ibn Umayya. Hence he was the brother of Abu Sufyan ibn Harb, who was chief of Mecca in the period 624–630 and a major opponent of Muhammad.^[1]

He had trade relations with Saʽd ibn ʽUbadah, the chief of the Banu Khazraj. Harith helped Sa'd when the later was captured by the Meccans after the Second Pledge of al-Aqabah.^[1]

He married Safiyya bint Abd al-Muttalib, one of Muhammad's paternal aunts, and they had a son, Safi.^{[2] [3]}

References

Notes and References

1. [The Sealed Nectar]
2. Muhammad ibn Saad, Tabaqat vol. 8. Translated by Bewley, A. (1995). The Women of Madina, p. 29. London: Ta-Ha Publishers.
3. [Becons of light]