法苑珠林 16.28

16.28

又智度論云。世尊身好細薄皮相塵土不著。身如蓮華葉不受塵水。若菩薩在乾土山中經行。土不著足。隨嵐風來吹破土山令散為塵。乃至一塵不著佛身。若菩薩舉食著口中。是時咽喉邊兩處。流注甘露和合諸味。是味清淨。故名味中得上味。

Furthermore, the Mahāprajñāpāramitā-śāstra states: “The World-Honoured One’s body is endowed with marks of fine and thin skin, so that dust and dirt do not adhere to it. His body is like a lotus leaf, unaffected by dust or water. If a bodhisattva walks in meditation among hills of dry earth, the soil does not stick to his feet. Even when a violent wind comes and blows apart the hills of earth, scattering them into dust, not a single speck of dust adheres to the Buddha’s body. When a bodhisattva takes food and places it into his mouth, at that time from two places beside his throat amṛta flows, blending with the various flavours. These flavours are pure, and therefore it is called ‘attaining the supreme flavour among flavours’.”