法華玄論 3.96

3.96

答：事如所問。明佛常住即破無常執，明同一佛性破三乘異執，二病既消即便領解。

Answer: It is just as you ask. Clarifying the eternal abiding of the Buddha immediately refutes the attachment to impermanence; clarifying the identical single Buddha-nature refutes the attachment to the difference among the three vehicles. Once both maladies were eliminated, they immediately attained understanding.