經律異相 29.30

29.30

Formerly, there was a king who had a human body and a donkey's head. The Buddha told the king: "The Snowy Mountains have a medicine named 'Superior Flavor'. If the king goes and eats it, he can regain a human head." The king went to the Snowy Mountains and selected herbs to eat, but his head did not change. The king returned and said to the Buddha: "Why did you speak falsely?" The Buddha told the king: "Do not choose among the herbs, and your head will naturally become human again." The king went back to the mountains. The things growing in the mountains all naturally dispelled illness; without selecting any further, he ate a single mouthful of grass and immediately regained a human head. (Extracted from the Miscellaneous Parables Sūtra)