Parashas Bo · Shemos 11:7 · TT note 1
Chabad.org — English translation + Rashi
Torah Temimah on Shemos 11:7, note 1 points to Berachos 56b (one who sees a dog in a dream).
Sefaria — Exodus 11:7
Sefaria — Torah Temimah on Exodus 11:7
Sefaria — Berachos 56b
E-Daf — Berachos 56b
English: One who sees a dog in a dream should rise early and say: “But against any of the children of Israel, a dog shall not whet its tongue,” before another verse preempts him: “And the dogs are greedy.”
Application of the passuk as a positive dream-resolution verse, because dreams follow the interpretation of the mouth.
This passuk is recited after seeing a dog in a dream so that the favorable wording will shape the dream’s outcome, rather than a harsh verse about dogs.