[1091] "The source should be known" means: the source (nidāna) of the eight pārājika offenses should be known; the source of the twenty-three saṅghādisesa offenses should be known; the source of the two aniyata offenses should be known; the source of the forty-two nissaggiya offenses should be known; the source of the one hundred and eighty-eight pācittiya offenses should be known; the source of the twelve pāṭidesanīya offenses should be known; the source of the dukkaṭa offenses should be known; the source of the dubbhāsita offenses should be known.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.