This continues as follows:
In the year 1057 (745-746), Marwan went out from the Gate of the Turks.
It is written in the prophet Jeremiah: “Therefore thus says the Lord: See I will put pitfalls before this people: fathers and son will fail together; neighbour and friend will perish.”
All these things happened to the Arabs, because brothers and nephews fell into pitfalls because of their ambition.
The supporters of Abbas and those of Hisham, the son of Walid and the supporters of Marwan, who were brothers and nephews, neighbours and friends, threw themselves on one another, perished themselves and perished with them a great many men.
Jeremiah also spoke about the journey even of Merwan: “See a people comes from the land of the north; a great nation comes out of the confines of the earth; they are armed with bows and spears, they are cruel and merciless; their voice is like the sound of a rough sea; they are mounted on horses and are prepared like brave men for battle. We have learned their design and our hands have grown weak; tribulation and pain have seized us, like a woman who gives birth. Do not go out in the fields and do not walk at all in the road because of the sword of the enemy.” And Isaiah also said, speaking of them: “I have raised him up from the north, he will come from the East, he will call on my name; they will take the judges and treat them like the mud that the potter tramples under his feet,” and again: “From the north the evil will spread over all the inhabitants of the earth.”
When Marwan had invaded Mesopotamia and subjected it, he established governors in all the cities, and even in Mosul. Then, having assembled a large army, he made it advance rapidly with workers and engineers.
The supporters of Abbas went to the West. Yazid, who had killed Walid, died after a reign of six months, and  his brother Ibrahim took his place.
The latter, on learning that Marwan had crossed the Euphrates with a large army, and that Mesopotamia had submitted, was seized with fear. “They shook and staggered like drunken men.”
He first sent Nouaim Ibn Thabit against Marwan, with a considerable army. It is reported of this man that he had seventy sons.
They then marched against each other and engaged in battle: the whole army of Ibn Thabit was destroyed and cut to pieces in the presence of Marwan.
The supporters of Ibrahim seeing that Marwan had triumphed in this first battle were afraid, and gathered innumerable forces, bringing even the country people to fight with slingshots.
Both armies advanced against each other, and having met, encamped at `Ain Gara.
After numerous engagements, and after many men had fallen continuously on both sides, Marwan finally gained the victory and cut Ibrahim to pieces and his brothers, who had run away, and Soliman, son of Hisham. No similar battle ever happened in the world; never in any place was so much blood as in this place. Even the people of the countryside — more than five thousand men — perished.
Merwan after his victory besieged Emesa, captured it and threw down its walls. He also removed the corpse of Yazid from its tomb and had it crucified head downwards.
He also took, from a certain Jew, four hundred thousand [pieces] of gold.