Five (are the animals) which, it one kills them In the state of Ihram, entail no sin for one (who does it): scorpion, rat, voracious dog, crow and kite.
Sahih Muslim Book 15, Hadith 86
← Previous Hadith Five (are the beasts) in killing which or their being killed in the precinct of the Ka'ba there is no sin." The rest of the hadith is the same.

Sahih Muslim Book 15, Hadith 85 Next Hadith → The Messenger of Allah (ﷺ) came to me on the occasion of Hudaibiya and I was kindling fire under my cooking pot and lice were creeping on my face. Thereupon he (the Holy Prophet) said: Do the vermins harm your head? I said: Yes. He said: Get your head shaved and (in lieu of it) observe fasts for three days or feed six needy persons, or offer sacrifice (of an animal). Ayyub said: I do not know with what (type of expiation) did he commence (the statement).

Sahih Muslim Book 15, Hadith 87