[2] Al-Azd's land during the eve of Islam was comparable to that of the contemporary Azd Sarāt, stretching from Bīsha to the Tihāma shores, the southern limit being approximately al-Nimāṣ and the northern one the modern town of al-Bāḥa.

[citation needed] Jafna bin Amr and his family headed for Syria, where he settled and initiated the kingdom of the Ghassanids.

The Azd 'Uman were the dominant Arab tribe in the eastern realms of the Caliphate and were the driving force in the conquest of Fars, Makran and Sindh.

They were the chief merchant group of Oman and Al-Ubulla, who organized a trading diaspora with settlements of Persianized Arabians on the coasts of Kirman and Makran, extending into Sindh since the days of Ardashir.

[10] They were strongly involved in the western trade with India, and with the expansion of the Muslim conquests, they began to consolidate their commercial and political authority on the eastern frontier.

Between 665 and 683 C.E., the Azdi 'Uman became especially prominent due in Basra on account of favors from Ziyad ibn Abihi, the Governor of Mu'awiya I, and his son Ubaidullah.

When a member of their tribe Abu Said Al- Muhallab ibn Abi Sufra became governor their influence and wealth increased as he extended Muslim conquests to Makran and Sindh, where so many other Azdi were settled.