Prophet Mohammed's supplication upon leaders.
It has been reported on the authority of Abd al-Rahman b. Shumasa who said:
“I came to A'isha to inquire something from her. She said: From which people art thou? I said: I am from the people of Egypt. She said: What was the behavior of your governor towards you in this war of yours? I said: We did not experience anything bad from him. If the camel of a man from us died, he would bestow on him a camel. If any one of us lost his slave, he would give him a slave. If anybody was in need of the basic necessities of life, he would provide them with provisions. She said: Behold! the treatment that was meted out to my brother, Muhammad b. Abu Bakr, does not prevent me from telling you what I heard from the Messenger of Allah (may peace be upon him)”.
He said in this house of mine:
"O God, who (happens to) acquire some kind of control over the affairs of my people and is HARD UPON THEM-be Thou hard upon him
...and who (happens to) acquire some kind of control over the affairs of my people and is KIND UPON THEM-be Thou kind to him.