The Distinct teaching is a Mahāyāna doctrine that expounds the Three Learnings: Buddhist precepts, meditation, and wisdom. The Buddhist precepts in this teaching, different from those of the Tripiṭaka or Common teaching, are the Diamond Treasure Precepts, which will never be broken.

Bodhisattvas of the Distinct teaching are not intimidated by the Three Evil Realms of hell, nor are they afraid of the realms of hungry souls and beasts. Instead, they fear the practices of the Two Vehicles, regarding them as the true Three Evil Realms. For in the Three Evil Realms the seed of Buddhahood will not die out, while in the Vehicles practices of śrāvaka and pratyekabuddha the seed of Buddhahood will vanish. As it is written in the Commentary on Adornment of the Mahāyāna Teachings, “Though being always in hell is not the obstacle against attaining the great Buddhahood, it would be an obstacle if one seeks self-interest.” This means that the true evil realm lies in the burning pit of the three unchanging principles of Hinayāna Buddhism, and that the truly evil ones are the men of the Two Vehicles. Therefore, it is preached that it is preferable to commit evil acts than to keep the precepts of the Two Vehicles.

Ichidai Shōgyō Tai-I, Outline of All the Holy Teachings of the Buddha, Writings of Nichiren Shōnin, Doctrine 3, Page 75-76