Uqbah bin Fakih narrates: I went to Zayd bin Thabit (may Allah be pleased with him), and he came out wearing a lower garment with a spear in his hand. I said: "Abu Kharijah, what is the need for a spear at this hour?" He said: "I was searching for this vile creature, for the killing of which Allah records a good deed and through it erases a sin, namely the gecko."
Hadith Referenceالمعجم الكبير للطبراني / باب الزاي / 4721