四分律比丘含注戒本 1.61

1.61

The Buddha said: "What is meant by the precepts being weakened without relinquishing the precepts? If a bhikṣu constantly harbors sorrow and distress, takes no joy in the brahmacarya, is weary of the bhikṣu's way, and intends to live at home, and then says, 'I remember my parents, wife, children, relatives, village, town, gardens, fields, and family property,' or 'I wish to relinquish the Buddha,' up to 'matters of training,' and so on, this is it. If he forms the thought, 'I now relinquish the precepts,' this is relinquishment due to the precepts being weakened."