عَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «كُلُّ ذِي نَابٍ منَ السِّباعِ فأكلُه حرامٌ» . رَوَاهُ مُسلم

Umm Sharik told that God’s messenger ordered geckos to be killed, saying the gecko blew on Abraham.1 1. Al-Qur’an 21:68 speaks of Abraham being put into a fire. In this tradition it is said that the gecko blew on the fire to stir it up.(Bukhari and Muslim.)