Sahih Muslim | Book 26 | Hadith Number 5551

Narrated by Nafi'
Nafi' reported on the authority of his father that as 'Abdullah b. 'Umar saw one day (standing) near the ruin (of his house) the slough of a snake and said (to the people around him): Pursue this snake and kill it. Abu Lubaba Ansari said: I heard Allah's Messenger (may peace be upon him). He forbade the killing of snakes found in the houses except the short-tailed snakes and those having streaks upon them, for both of them obliterate eyesight and affect that which is in the wombs of (pregnant) women.