Narrated 'Abdullah:

While we were in the company of the Prophet in a cave at Mina, when Surat-wal-Mursalat were revealed and he recited it and I heard it (directly) from his mouth as soon as he recited its revelation. Suddenly a snake sprang at us and the Prophet ﷺ said (ordered us): "Kill it." We ran to kill it but it escaped quickly. The Prophet ﷺ said, "It has escaped your evil and you too have escaped its evil."

حَدَّثَنَا عُمَرُ بْنُ حَفْصِ بْنِ غِيَاثٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا الأَعْمَشُ، قَالَ حَدَّثَنِي إِبْرَاهِيمُ، عَنِ الأَسْوَدِ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه ـ قَالَ بَيْنَمَا نَحْنُ مَعَ النَّبِيِّ ﷺ فِي غَارٍ بِمِنًى، إِذْ نَزَلَ عَلَيْهِ {وَالْمُرْسَلاَتِ} وَإِنَّهُ لَيَتْلُوهَا، وَإِنِّي لأَتَلَقَّاهَا مِنْ فِيهِ، وَإِنَّ فَاهُ لَرَطْبٌ بِهَا، إِذْ وَثَبَتْ عَلَيْنَا حَيَّةٌ فَقَالَ النَّبِيُّ ﷺ " اقْتُلُوهَا ". فَابْتَدَرْنَاهَا، فَذَهَبَتْ، فَقَالَ النَّبِيُّ ﷺ " وُقِيَتْ شَرَّكُمْ كَمَا وُقِيتُمْ شَرَّهَا ".