The people were seized with panic at what they had witnessed of his brutality. That very night he went out again on patrol, came upon three hundred men, and severed their heads; after that no one dared leave his house once the final evening (ʿishāʾ) prayer had passed.
When Friday arrived he mounted the pulpit and announced, “People! Let none of you lock his shop at night; whatever is stolen from you, I will make good.” Not a single person had the nerve to close his shop that night.
The next morning a money-changer came to him and said, “Four hundred dinars were stolen from me last night.” Ziyād asked, “Can you swear that your claim is true?” The man replied, “Yes.” Ziyād placed him under oath, reimbursed him the 400 dinars, and instructed, “Keep this matter to yourself and inform no one.”
On the following Friday the congregation gathered for prayer and Ziyād again ascended the pulpit. He declared, “Be aware that 400 dinars were stolen from the money-changer’s shop while all of you were present. If you return the money, its owner will have recovered his property; if you do not, I have ordered that none of you be allowed to leave the mosque and that you be put to death this very hour.” Immediately they turned on the man they suspected of the theft, brought him forward, and he produced the gold he had taken. Ziyād ordered him crucified on the spot.
Ziyād then asked, “Which quarter of Basra is the most insecure?” He was told, “The quarter of Banū al-Azd.” He commanded that a costly brocade garment be left there at night where no one could see who placed it. It lay there for several days exactly where it had been put; no one dared approach it or remove it.
Some of his relatives later said, “Governance is admirable, but you showed no mercy to the Muslims at the outset—you destroyed a great many lives.” He replied, “I established the proof against them three days beforehand, yet, out of the evil consequences of their disobedience, they still would not desist. What befell them was only the result of their own deeds.”