Regarding killing snakes
حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا سُفْيَانُ، عَنِ الزُّهْرِيِّ، عَنْ سَالِمٍ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " اقْتُلُوا الْحَيَّاتِ وَذَا الطُّفْيَتَيْنِ وَالأَبْتَرَ فَإِنَّهُمَا يَلْتَمِسَانِ الْبَصَرَ وَيُسْقِطَانِ الْحَبَلَ " . قَالَ وَكَانَ عَبْدُ اللَّهِ يَقْتُلُ كُلَّ حَيَّةٍ وَجَدَهَا فَأَبْصَرَهُ أَبُو لُبَابَةَ أَوْ زَيْدُ بْنُ الْخَطَّابِ وَهُوَ يُطَارِدُ حَيَّةً فَقَالَ إِنَّهُ قَدْ نُهِيَ عَنْ ذَوَاتِ الْبُيُوتِ .
Ibn ‘Umar reported the Messenger of Allah(ﷺ) as saying: Kill snakes, kill those which have two streaks and those with small tails, for they obliterate the eyesight and cause miscarriage. Salim said: ‘Abd Allah(b. ‘Umar) used to kill every snake which he found. Abu Lubabah or Zaid b. al-Khattab saw him chasing a snake. He said: He(the Prophet) prohibited house-snakes.