維摩經玄疏 4.38

4.38

Second, clarifying the grading of the stages of the distinctive teaching using the stages of the Tripiṭaka teaching: the pure, stainless stage of a successor in one lifetime explained in the Tripiṭaka, when graded against the distinctive teaching, is equal to the iron-wheel tenth stage of aspiration in the ten faiths; its Buddha ground is only equal to the initial ground of the distinctive teaching. This is the primary intent; secondary considerations can be known by analogy with the shared teaching.