When the devil comes at night to worry me, this is what I say to him: Devil, I have to sleep now. That is God's commandment, for us to work by day and sleep at night. If he keeps on nagging me and trots out my sins, then I answer: Sweet devil, I know the whole list. But I have done even more sin which is not on your list. Write there also that I have shit in my breeches. Hang it around your neck and wipe your mouth on it. Then, if he won't cease to accuse me of sins, I say in contempt: Holy Satan, pray for me. ("Sancte Satane, ora pro me").
In, I Am a Christian: The Nun, the Devil, and Martin Luther, Carolyn M. Schneider, Fortress Press 2010, ISBN 0800697324 ISBN 978-0800697327 p. 49. (citing in Notes (p. 148), WA, Tr 2:131–32). - Table Talk (1569)