四分律比丘含注戒本 2.758

2.758

The Buddha was in Śrāvastī. Upananda entered a village at an improper time, played dice with a householder, and won. Out of stinginess and jealousy, the householder ridiculed and criticized him. The bhikṣus reported this fault to the Buddha, who rebuked him and formulated this precept.