瑜伽論記 6.135

6.135

泰云：附在異生，所依五蘊，有聲聞姓殊勝無漏種子體相，不在山河外六塵中，故六處所攝，難陀等不許本有種子義。釋此文云：如產女有能生子用，說有人種。然其女身中未曾有胎，此亦如之堪能得證，故說有種。此堪能得義，非修所得故，法爾。

Tai says: Attached to an ordinary being's locus of reliance, the five aggregates, there is the essential mark of the superior untainted seeds of the śrāvaka gotra; it is not among the external six dusts of mountains and rivers, and hence is subsumed under the six sense spheres. Nanda and others do not accept the doctrine of originally existent seeds; explaining this text, they say: Just as a fertile woman has the capacity to bear a child, she is said to possess the human seed, yet within that woman's body there was never an embryo; this is just like that: because one has the capability to attain realization, one is said to have seeds. This meaning of capability of attainment is not obtained through cultivation, and is thus natural.