成唯識論了義燈 1.28

1.28

Answer: For those of indeterminate lineage, it speaks of oneness in terms of the principle. It refutes their clinging to different principles and causes them to advance toward the Great [Vehicle]. If they are of determinate lineage, their contemplative practices differ, and it speaks of them as like medicinal herbs. The vehicles are thus distinct, and so it can apply generally. However, it was mostly for the indeterminate that this sūtra was spoken. It speaks solely of the one vehicle for the sake of the deeds done by the śrāvakas, and so forth.