Note 152 — Chapter XI · CAMPAIGN IN SYRIA.—BATTLE OF WACUSA ON THE YERMUK. A.H. XIII. A.D. 634.
Reading edition
Shorahbîl had fought under the great Khâlid at Yemâma, and thence accompanied him to Irâc. Deputed at this crisis to Medîna with despatches or booty, he there obtained this command.