II - 10. Schlafe, mein Liebster, geniese der Ruh...

Whose song is II - 10. Schlafe, mein Liebster, geniese der Ruh...?

Artist Album
Masaaki Suzuki & Bach Collegium Japan
J. S. Bach : Christmas Oratorio, BWV 248 (CD1)
J.S. Bach - Christmas Oratorio (Weihnachts-Oratorium), BWV 248