The Long Āgama Sūtra 27.52

27.52

「復次，大王！若王界內寄居客人食王廩賜，見王於十五日月滿時，沐髮澡浴，於高殿上與諸婇女五欲自娛。彼作是念：『咄哉！彼行之報乃如是耶？誰能知此乃是行報者？』彼於後時，剃除鬚髮，服三法衣，出家修道，行平等法。云何，大王！大王若遙見此人來，寧復起念言：『是我客民食我廩賜。』耶？」

“Furthermore, great king. Suppose people from the king’s realm, inside his household, or who are visiting eat from the king’s provisions. They see the king on the fifteenth day full moon wash his hair and bathed. He then ascends the high hall with his concubines, and they entertain themselves with the five desires. These people think, ‘Ah! This is the reward of what action? Who can know what action for which this is the reward?’ Afterward, they shave off their hair and beards, put on the three Dharma robes, leave home, cultivate the path, and practice equanimity. How is it, great king? When the great king sees these people coming from a distance, would he again produce the thought, ‘These are my people who eat from my provision as guests’?”