大般涅槃經集解 70.113

70.113

案僧亮曰：一切皆從緣生，是無常法。所以言即是者，不離身有命、不離命有身也。身異命異者，身當法體，命談始終如此。

Sengliang remarks: All things arise from conditions and are impermanent dharmas. The reason for saying 'they are identical' is that there is no life-principle apart from the body, nor is there any body apart from the life-principle. As for 'the body is different and the life-principle is different,' the body corresponds to the substance of dharmas, while the life-principle speaks of beginning and end in this way."