四分律行事鈔資持記 2.1350

2.1350

緣中。第五不待說者，疏云：《戒本》向彼說者，據聽者意；至於結罪，但聞便犯；若待向說，落兩舌中；又云：兩舌未有諍，聽不必生，待說方有；此先有諍，往聽必生，故深前制，豈待其說。

In the conditions, regarding the fifth, "not waiting until one speaks": the commentary states, "The Prātimokṣa saying 'spoke to others' is based on the listener's intention; as for determining the offense, simply hearing it incurs the offense. If one had to wait until speaking to others, it would fall under divisive speech." It also states: "In divisive speech, a dispute does not yet exist; merely listening does not necessarily give rise to it, and it only exists when one speaks. Here, a dispute already exists; going to eavesdrop is certain to give rise to it; therefore the prior prohibition is profound—how could one wait for them to speak?"