四分律比丘含注戒本 2.682

2.682

尼同犯。不犯者，若未曾聞廣說，今始聞。若戲笑，若錯說者，開。

Bhikṣuṇīs commit the same offense. As for non-offenses: if he had never heard the detailed explanation and only now hears it for the first time; if done in jest, or if spoken erroneously—it is permitted.