Upper Mesopotamia and the Caucasus
Habib was sent under Iyad ibn Ghanm to Upper Mesopotamia, and afterwards — jointly with Salman ibn Rabi’a — he led the conquest of Armenia, reaching to the Caucasus. 1 History of Islam · Vol 1 · pp. 350, 357, 386 — Najeebabadi — Habib ibn Maslama in Upper Mesopotamia; jointly conquers Armenia with Salman ibn Rabi'a; reaches the Caucasus.
To Relieve Uthman
He set out from Syria to support Uthman during the siege — but the news of his martyrdom reached him before he could arrive. 2 History of Islam · Vol 1 · pp. 412 — Najeebabadi — Habib sets out to relieve Uthman during the siege.
At Siffin
Mu’awiya later sent him as an envoy to Ali at Siffin, alongside Shurahbil ibn al-Samt and Ma’n ibn Yazid. 3 History of Islam · Vol 1 · pp. 460 — Najeebabadi — Habib ibn Maslama envoy of Mu'awiya to Ali at Siffin.
Life Timeline
Sent under Iyad ibn Ghanm to Upper Mesopotamia
Jointly conquers Armenia with Salman ibn Rabi'a
Sets out to relieve Uthman during the siege
Envoy of Mu'awiya to Ali
References
- History of Islam — Najeebabadi — Habib ibn Maslama under Iyad ibn Ghanm; co-conqueror of Armenia; relief of Uthman; Mu'awiya's envoy at Siffin Vol 1 · pp. 350, 357, 386, 412, 414, 460