仁王經疏 3.461

3.461

釋曰：第四、明九地相。初地證如，境智平等，名第一義。與後九地作其因相，名九地相。故《攝論》云「若於初地達法界時，速能通達後一切言。如地頌有『如竹破初節，餘節速能破；得初地真智，諸地疾當成。』」

Explanation: Fourth, explaining the marks of the nine bhūmis. The first bhūmi realizes tathatā, where object and wisdom are equal, which is called the supreme truth (paramārtha). Because it serves as the causal mark for the subsequent nine bhūmis, it is called the mark of the nine bhūmis. Thus the Mahāyānasaṃgraha states: 'If one penetrates the dharmadhātu at the first bhūmi, one can quickly penetrate all subsequent teachings.' As a verse on the bhūmis says: 'Just as when the first joint of a bamboo is split, the remaining joints can quickly be split; / attaining the true wisdom of the first bhūmi, the various bhūmis will swiftly be accomplished.'