From The Arabian Nights

Once upon a time a Falcon stooped from its flight and seized a Partridge; but the latter freed himself from the seizer, and entering his nest, hid himself there. The Falcon followed apace and called out to him, saying:

"O imbecile, I saw you hungry in the field and took pity on you; so I picked up for you some grain and took hold of you that you might eat; but you fled from me, and I know not the cause of your flight, except it were to put upon me a slight. Come out, then, and take the grain I have brought you to eat, and much good may it do you, and with your health agree."

When the Partridge heard these words he believed, and came out to the
Falcon, who thereupon struck his talons into him and seized him.

Cried the Partridge, "Is this that which you told me you had brought me from the field, and whereof you told me to eat, saying, 'Much good may it do you, and with your health agree?' Thou hast lied to me, and may God cause what you eat of my flesh to be a killing poison in your maw!"

When the Falcon had eaten the Partridge his feathers fell off, his strength failed, and he died on the spot. Know that he who digs for his brother a pit, himself soon falls into it.