佛說目連問戒律中五百輕重事經 1.59

1.59

問：「結界得通佛地結不？」答：「不得於中受戒。若先不知法，已受得戒。師僧若知，故違有罪。」

Question: "In demarcating a sīmā, may it be demarcated including the Buddha's ground?" Answer: "One must not receive ordination within it. If one previously did not know the rule and has already received ordination, [the ordination] is valid. If the master and saṃgha knew and intentionally violated it, there is an offense."