Hadith 8:3211
Abu Bakr narrated to us, he said: Waki' narrated to us, from Ibrahim ibn Nafi', he said: I heard al-Hasan ibn Muslim saying: Tawus was asked about the dung beetle and the gecko, [whether] the one in ihram may kill them. He said: There is no harm in it.
حدثنا أبو بكر قال ثنا وكيع عن إبراهيم بن نافع قال سمعت الحسن بن مسلم يقول سئل طاوس عن الجعل والوزغ يقتله المحرم قال لا بأس به