The Chachnāma (Fatḥnāma-yi Sind) 26: Supply of camels.

26

Hajjáj said in a letter to Muhammad Kásim: “You have got everything ready, and now let every four horsemen take one camel with them. I give you strong loading camels to carry (each) a heavy load (of provisions) so that you may not stand in want of them. You ought to fear the great God, and consider patience as an ornament. When you arrive in the country of the enemy, encamp in plains and open fields that your movements may be free and extensive. At the time of battle, divide yourselves into detached columns, and then rush in from different directions, as you shall have to fight with veteran heroes. And when they make an assault, do you make a halt and shower arrows at them. You must make such coats of mail for horses as to give them the appearance of lions.” beasts, like the lion and the elephant.” He ordered tailors and armourers to prepare several coats of mail in the shape of lions and elephants, and he forwarded them. These letters of Hajjáj, together with 6,000 horsemen, 6,000 camelmen, and 3,000 loading camels (duly) arrived at Shíráz, and Muhammad Kásim read the letters. That was in the year 72 after the Hijrah.