The Jews had many a treaty with Mahomet, and lived peaceably at Medina; till a Jew, having affronted an Arabian milk-woman, was killed by a Mussulman.  In revenge for this the Jews killed the Mussulman, whereupon a general quarrel ensued.  The Jews fled to their castles; but after a siege of fifteen days were forced to surrender at discretion.  Mahomet ordered their hands to be tied behind them, determined to put them all to the sword, and was with great difficulty prevailed upon to spare their lives and take all their property.  Kaab, son of Ashraf, was one of the most violent among the Jews against Mahomet.  He had been at Mecca, and, with some pathetic verses upon the unhappy fate of those who had fallen at Beder, excited the Meccans to take up arms.  Upon his return to Medina he rehearsed the same verses among the lower sort of people and the women.  Mahomet, being told of these underhand practices, said, one day, “Who will rid me of the son of Ashraf?” when Mahomet, son of Mosalama, one of the helpers, answered, “I am the man, O apostle of God, that will do it,” and immediately took with him Salcan son of Salama, and some other Moslems, who were to lie in ambush.  In order to decoy Kaab out of his castle, which was a very strong one, Salcan, his foster-brother, went alone to visit him in the dusk of the evening; and, entering into conversation, told him some little stories of Mahomet, which he knew would please him.  When he got up to take his leave, Kaab, as he expected, attended him to the gate; and, continuing the conversation, went on with him till he came near the ambuscade, where Mahomet and his companions fell upon him and stabbed him.

Abu Sofian, meditating revenge for the defeat at Beder, swore he would neither anoint himself nor come near his women till he was even with Mahomet.  Setting out toward Medina with two hundred horse, he posted a party of them near the town, where one of the helpers fell into their hands and was killed.  Mahomet, being informed of it, went out against them, but they all fled; and, for the greater expedition, threw away some sacks of meal, part of their provision.  From which circumstance this was called the meal-war.

Abu Sofian, resolving to make another and more effectual effort, got together a body of three thousand men, whereof seven hundred were cuirassiers and two hundred cavalry; his wife Henda, with a number of women, followed in the rear, beating drums, and lamenting the fate of those slain at Beder, and exciting the idolaters to fight courageously.  The apostle would have waited for them in the town, but as his people were eager to advance against the enemy, he set out at once with one thousand men; but of these one hundred turned back, disheartened by the superior numbers of the enemy.  He encamped at the foot of Mount Ohud, having the mountain in his rear.  Of his nine hundred men only one hundred had armor on; and as for horses, there was only one besides that on which he himself rode.  Mosaab carried the prophet’s standard; Kaled, son of Al Walid, led the right wing of the idolaters; Acrema, son of Abu Jehel, the left; the women kept in the rear, beating their drums.  Henda cried out to them:  “Courage, ye sons of Abdal Dari; courage! smite with all your swords.”