The Messenger of Allah ﷺ gave a household of the Ansar permission to use ruqyah for the bite of any venomous creature.
حدثنا هشيم قال أنبأنا مغيرة عن إبراهيم عن الأسود
أن رسول الله ﷺ رخص لأهل بيت من الأنصار في الرقية من كل ذي حمة
Its isnad is sahih. Its narrators are trustworthy and well-known. Ibrahim is Ibn Yazid Nakhai, and Aswad is also Ibn Yazid Nakhai, and both of them are leading authorities. The hadith has already appeared at 15920.