Annals of the early Caliphate from the death of Mahomet to the Omeyyad and Abbaside dynasties A.H. XI-LXI (A.D. 632-680) from original sources

Note 382 — Chapter XXV · ADVANCE ON THE SOUTHERN BORDER OF PERSIA—HORMUZAN TAKEN PRISONER. A.H. XVI.-XX. A.D. 637–641.

Reading edition

Omar, as we shall see farther on, had an unconquerable dread of committing his troops to the sea.