佛說目連問戒律中五百輕重事經 2.21

2.21

問：「比丘以器盛飯，停著鉢中，得互用鉢食不？」答：「不得。犯捨墮。」

Question: "If a bhikṣu puts rice in a vessel and places it inside his pātra, may he alternate in using the pātra to eat?"
Answer: "He may not; he commits a naiḥsargika-pāyattika offense."