Hazrat Asim says that I have never seen Abu Wa'il (may Allah have mercy on him) speak ill of any living creature that walks on the earth except for Hajjaj. Once, mentioning his evil deeds, he said: O Allah! Feed Hajjaj from the shrub called Dari' such food that neither fattens nor satisfies hunger. He says that then, as a form of correction, he said: If You so wish. I said: Do you still have any doubt about Hajjaj? He replied: Do you consider the addition of this statement to be a sin?