尼羯磨 1.20

1.20

解大界法（諸比丘尼或欲廣作界及狹作者，佛聽先解前界，然後欲廣狹作從意。當作白二羯磨解，應如是作。）

The Method for Revoking a Mahāsīmā (If bhikṣuṇīs wish to make a boundary wider or narrower, the Buddha permitted that they first revoke the previous sīmā, and afterwards make it wider or narrower as they wish. It should be revoked by performing a jñaptidvitīya-karman, and one should proceed as follows:)