大方便佛報恩經 6.105

6.105

「雖不受終身戒，以有一日一夜戒故，應名優婆塞。有云：『若名優婆塞，無終身戒；若非優婆塞，有一日一夜戒。但名中間人。』有經說。」

"Although he has not received lifelong precepts, because he has the precepts for one day and one night, he should be called an upāsaka. Some say: 'If he is called an upāsaka, he lacks lifelong precepts; if he is not an upāsaka, he has the precepts for one day and one night. He is simply called an intermediate person.' So a sūtra states."