Narrated Nafi`: Ibn `Umar used to kill all kinds of snakes until Abu Lubaba Al-Badri told him that the Prophet had forbidden the killing of harmless snakes living in houses and called Jinan. So Ibn `Umar gave up killing them.

Narrated Ibn `Umar: That he heard the Prophet delivering a sermon on the pulpit saying, "Kill snakes and kill Dhu-at- Tufyatain (i.e. a snake with two white lines on its back) and ALBATROSS (i.e. a snake with short or mutilated tail) for they destroy the sight of one's eyes and bring about abortion."