بُلُوغُ الْمَرَامِ
Bulugh al-Maram 227
The Book of Prayer
وَعَنْ أَبِي هُرَيْرَةَ - رضى الله عنه - قَالَ: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ اُقْتُلُوا اَلْأَسْوَدَيْنِ فِي اَلصَّلَاةِ : اَلْحَيَّةَ, وَالْعَقْرَبَ } أَخْرَجَهُ اَلْأَرْبَعَةُ , وَصَحَّحَهُ اِبْنُ حِبَّانَ [1] .
Narrated Abu Hurairah (RA): "Allah's Messenger (ﷺ) said: "Kill the two black ones during Salat (prayer), the snake and the scorpion." [Reported by al-Arba'a, and Ibn Hibban graded it Sahih (authentic)].
Sunnah.com reference: Book 2, Hadith 93