Source: PL-WRu I F 413 Cistercian Gradual (Silesia)Folio: 139vSequence: 4Feast: Septem FratrumOffice: MASSGenre: ComCantus ID: g00117Mode: 1TFull text: Quicumque fecerit voluntatem patris mei qui in caelis est ipse meus frater soror et mater est dicit dominus