al-Bara' bin Azib bin al-Harith · The Book on Hunting

"The Messenger of Allah (ﷺ) prohibited eating the Mujath-thamah, and it is what is trapped and killed by arrows."

That the Messenger of Allah (ﷺ) said: "Whoever kills a gecko in one strike, he has such and such reward, and if he kills it on the second strike, he will have such and such reward, and if he kills it on the third strike, then he has such and such reward."