Jami` at-Tirmidhi 1482
جامع الترمذي#1482Sahihحَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا وَكِيعٌ، عَنْ سُفْيَانَ، عَنْ سُهَيْلِ بْنِ أَبِي صَالِحٍ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " مَنْ قَتَلَ وَزَغَةً بِالضَّرْبَةِ الأُولَى كَانَ لَهُ كَذَا وَكَذَا حَسَنَةً فَإِنْ قَتَلَهَا فِي الضَّرْبَةِ الثَّانِيَةِ كَانَ لَهُ كَذَا وَكَذَا حَسَنَةً فَإِنْ قَتَلَهَا فِي الضَّرْبَةِ الثَّالِثَةِ كَانَ لَهُ كَذَا وَكَذَا حَسَنَةً " . قَالَ وَفِي الْبَابِ عَنِ ابْنِ مَسْعُودٍ وَسَعْدٍ وَعَائِشَةَ وَأُمِّ شَرِيكٍ . قَالَ أَبُو عِيسَى حَدِيثُ أَبِي هُرَيْرَةَ حَدِيثٌ حَسَنٌ صَحِيحٌ .
Narrated Abu Hurairah: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
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 18:23