Maliks Muwatta Book 54, Hadith Number 32.

Section : Killing Snakes and what is Said about them.

Malik related to me from Nafi from Sa’iba, the female mawla of A’isha, that the Messenger of Allah, may Allah bless him and grant him peace, forbade killing the snakes which were in the houses except those with two white stripes on their back and the short ones. They made one go blind and caused miscarriages in women.