Matthew 13:10
And his disciples came and said to him, Why do you speak to them in parables?
Mark 4:10
And when he was alone, those about him, with the twelve, asked him the parable.
Mark 4:33-34
And with many such parables spoke he the word to them as they could hear;
Treasury of Scripture Knowledge
Summary
And the disciples came, and said unto him, Why speakest thou unto them in parables?