I created my account on this forum only to ask questions and hopefully get relevant answers back, but I will make an exception to this case. The instruction of the Buddha that you quoted occurs only in DN 16 of Theravada and Chinese DA 2 of Dharmaguptaka. They are entirely absent in Sanskrit SF 245 of (most likely) Sarvastivada and Chinese T 6 of an unidentified school.
Ven Sujato did write an essay about SF 245 here: What the Buddha said to Ānanda about women: some textual issues
*I apologize to the OP for being off-topic here.