Targum for Genesis 4:16

And Kain went out from before the Lord, and dwelt in the land of the wandering of his exile, which had been made for him from before, as the garden of Eden.

And Kain went out from before the Lord, and dwelt in the land of exile and wandering, eastward of the garden of Eden. And it had been before Kain slew Habel his brother that the earth multiplied fruits, as the fruits of the garden of Eden; (but) from (the time that) he sinned and killed his brother, it changed, to produce thorns and thistles.