仁王經疏 1.13

1.13

As for those for whose sake [it was spoken], there are two meanings: First, in terms of the three vehicles: as in the three Dharma-wheels of the Saṃdhinirmocana, the first wheel of the four truths was spoken for those setting out in the śrāvaka vehicle; the second teaching of signlessness was spoken for those wishing to set out in the bodhisattva vehicle; and the third wheel was spoken for those setting out in all vehicles. Thus we know that this sūtra was spoken for bodhisattvas. If relying on the five spiritual lineages, this sūtra was spoken for those of the bodhisattva lineage and those of indeterminate lineage. The meaning of the five lineages is fully set forth in a separate treatise.