Note 394 — Chapter XXVII · THE LATER YEARS OF OMAR’S REIGN—DOMESTIC EVENTS. A.H. XVII.-XXIII. A.D. 638–644.
Reading edition
Ascalon is stated to have fallen as late as A.H. XXIII., i.e. A.D. 643. If so, it must have held out so long only in virtue of its maritime position. But we have no details.