 Rambai muchinyora ndima iyi - Kusiyana nevakamutangira, al-Numan akanga asina hanya nevakwikwidzi vechiLakhmids vechiArabhu, vaGhassanids, sezvo vekupedzisira vakanga vawira pasi nevatongi vavo veByzantine mu1800 uye vakagumiswa sechinhu chinokonzera simba munharaunda yacho. Chiitiko chechiuto chakanyorwa chete cha al-Numan kurwisa nhare yeByzantine yeCircesium panguva yeByzantine-Sasanian Hondo ya572-591. Maererano nenhoroondo dzechiArabhu, al-Numan akapa hupoteri kumwanakomana waHormizd, Khosrow II , panguva yekutiza kwake kubva kumuridzi Bahram Chobin muna 590, uye akarwa pamwe naye muhondo pa al-Nahrawan kurwisa mauto emuridzi. 