長阿含經 28.p131

28.p131

The wanderer said to the Buddha, “Those of a different training who want to leave home for the path in the Buddha’s Dharma, they’re first observed for four months, and then the assembly gives their assent. After that, they are given the precepts and leave home. Now, I would be willing to be observed for four years before the assembly assented. After that, I would look forward to receiving the precepts and leaving home.”