Midrash sur Job 35:5

One time I was walking on the way. A man found me, and went with me on the way of mitzvot, and he had mikra (ie: written law) but no mishnah (ie: oral law). And he said to me, "Rabbi, mikra was given to us from Mount Sinai. Mishnah was not given to us from Mount Sinai." And I said to him, "My son, mikra and mishnah were both of them said from the mouth of God." And what is the difference between mikra and mishnah? Rather he told him a parable: To what is this matter similar? To a human king (lit: a king of flesh and blood) who had two servants, and he loved them with a great love. And he gave to one a kab (a measure) of wheat and to the other kab of wheat. And he also gave to each one of them a bundle of flax. The wise one of them took the flax and wove a beautiful cloth, and took the wheat and made it into fine flour, and sifted it, and ground it, and kneaded it, and baked it, and set it on the table, and spread the beautiful cloth over it, and left it there until the king should come. And the fool of them did nothing. After some time the king came into his house, and said to them, to his two servants, "My sons, bring to me what I gave you." One of them brought out the bread of fine flour, on the table, with the beautiful cloth spread over it. And the other of them brought out the wheat in a pile and the bundle of flax upon it. Woe for that shame! Woe for that disgrace! Which one is more favored? You must admit it is the one who brought out the bread on the table with the beautiful cloth spread over it.