Dharmaguptaka-vinaya 15.4

15.4

時諸比丘於中生疑，不敢自取楊枝淨水，佛言：「比丘自取楊枝淨水，不犯。自今已去當如是說戒：若比丘，不受食、若藥著口中，除水及楊枝，波逸提。」

Then the bhikṣus had doubts about this and did not dare to take tooth-sticks and clean water on their own. The Buddha said: 'If a bhikṣu takes tooth-sticks and clean water on his own, there is anāpatti. From this day forward, one should recite the precept thus: If a bhikṣu puts into his mouth food or medicine that has not been received, except for water and tooth-sticks, it is a pāyattika.'