Note 63 — Chapter VIII · CAMPAIGN AGAINST THE REBELS IN THE EAST AND SOUTH OF ARABIA. A.H. XI. A.D. 632–3.
Reading edition
The mission of Alâ must have been considerably later than that of Khâlid. We have before seen reason to believe that the various expeditions were not, as tradition represents, despatched all at once from Dzul Cassa.