維摩經略疏 1.34

1.34

問：那約有餘明一質耶？答：三乘同以無言說道發真無漏，所感國土一法相同，故言一也。

Question: Why explain a single substance in terms of [the land] with remainder? Answer: The three vehicles equally give rise to true uncontaminated [insight] through the wordless path, and the land they evoke shares one and the same dharmic characteristic; therefore it is called 'single'.