四分律比丘含注戒本 2.591

2.591

The Buddha was in Rājagṛha. There was a group of seventeen boys, the eldest being seventeen years of age and the youngest eleven, who went forth out of faith. The bhikṣus immediately ordained them with upasampadā. Unable to endure eating only one meal a day, they wept at night. The Buddha awoke, inquired and found out, gathered the saṃgha after the night had passed, and then instituted the rule and laid down the precept.