四分律比丘含注戒本 3.177

3.177

The Buddha was in Śrāvastī. A householder prepared an offering of food, personally serving it. The group of six took food out of order. The householder criticized them, saying: "Without satisfaction, like pigs, dogs, oxen, donkeys, camels, and crows." The bhikṣus brought up the fault, and the Buddha consequently rebuked them and formulated [the precept].