[333] There is no offence: if a bhikkhu is present and she enters having asked leave; if no bhikkhu is present and she enters without asking leave; if she goes keeping in view the head (of one who has gone in ahead); if she goes to where bhikkhunīs are assembled; if the path passes through the monastery; if she is ill; in emergencies; if she is insane; if she is the first offender.
The Second Training Rule of the Ārāma Chapter
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.