TT #249 · Parshas Shemini · Aliyah 7 · Passuk 43
Chabad.org — Vayikra Chapter 11 with Rashi
English: “Do not make yourselves detestable”: Rav Kahana was standing before Rava when a creature passed over his mouth, illustrating the practical concern of avoiding such contact.
Shabbos 90b.
E-Daf.com — Shabbos 90b (Tsurras Hadaf)
Practical application — The Chazal applies the verse’s wording and structure to establish the stated teaching.
The prohibition of making oneself repulsive applies even to conduct involving a repulsive creature.