因明入正理論疏 2.161

2.161

論　異品一分轉，同品遍轉者，如立宗言：聲是勤勇無間所發，無常性故。

[The text of the *Nyāyapraveśa*] states: As for occurring in part of the heterologous class and occurring in all of the homologous class, it is as when one establishes the proposition: "Sound is produced immediately through deliberate effort, because of having non-eternality."