Bak thôn 622 M, Umar kaneuikôt sajan Nabi Muhammad S.A.W. ngon dum ureuëng islam nyang la'én neujak meuhijrah (neuminah) u Yatsrib (jinoë Madinah). Gobnyan rôh cit lam prang Badar, Uhud, Khaybar seureuta watèe neuseurang Suriyah. Bak thôn 625, aneuk inong gobnyan (Hafsah) geumeugatib ngon Nabi Muhammad S.A.W. Gobnyan ka geuingat seubagoë ureuëng nyang that geuseugan lé kawôm Islam bak masanyan, ngon geuturi seubagoë sidroë ureuëng nyang bak garéh keuë sabé geubila Nabi ngon ureuëng Islam.