The Apostles are not to choose carelessly the house into which they enter, that they may have no cause for changing their lodging; the same caution is not enforced upon the entertainer, lest in choosing his guests, his hospitality should be diminished.
“When ye enter a house, salute it, saying, Peace be to this house.”
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Ambros., in Luc., 9. 5