The Long Āgama Sūtra 27.6

27.6

爾時，王阿闍世韋提希子以十五日月滿時，命一夫人而告之曰：「今夜清明，與晝無異，當何所為作？」

It was then that King Ajātaśatru, the son of Vaidehī, summoned one of his wives during the fifteenth day full moon. He said to her, “Tonight is clear and bright, and the day was no different. What shall we do?”