“There are eighteen grounds for knowing that someone is speaking contrary to the Teaching: A monk proclaims what’s contrary to the Teaching as being in accordance with it, and what’s in accordance with the Teaching as contrary to it. He proclaims what’s contrary to the Monastic Law as being in accordance with it, and what’s in accordance with the Monastic Law as contrary to it. He proclaims what hasn’t been spoken by the Buddha as spoken by him, and what’s been spoken by the Buddha as not spoken by him. He proclaims what wasn’t practiced by the Buddha as practiced by him, and what was practiced by the Buddha as not practiced by him. He proclaims what wasn’t laid down by the Buddha as laid down by him,