起信論疏筆削記 5.36

5.36

一音下，別釋圓音，二：初、釋義，又二：初約教義正明，二：初、約說法差別顯圓義。如來等者，謂佛音無別，故云一音。說法成異，故云圓音。引證可知。

[The passage from] "a single sound" onwards separately explains the complete sound, in two parts: first, explaining the meaning, which again has two parts: first, directly clarifying in terms of teachings and meanings, which has two parts: first, revealing the meaning of "complete" in terms of the differences in preaching the Dharma. "The Tathāgata" and so forth: because the Buddha's voice has no distinctions, it is called "a single sound". Because his preaching of the Dharma results in differences, it is called the "complete sound". The citations of proof are self-evident.