مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3563
Musnad of Abdullah bin Mas'ood
It was narrated that 'Abdullah (رضي الله عنه) said: We were with the Messenger of Allah (ﷺ) in Mina and a snake appeared. The Messenger of Allah (ﷺ) said: "Kill it.” We rushed to kill it but it got away from us.
Musnad Ahmad 3586Its isnad is saheeh, al-Bukhari (1830) and Muslim (2234)]