Sayyiduna Abu Hurayrah (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "A nation will enter Paradise with all of its people. They are those who do not seek ruqyah (incantation), do not have themselves cauterised, and rely upon their Lord."
Al-Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains a narrator whom I do not know. The sahih (authentic) hadiths on this subject are those concerning the one who will enter Paradise without any reckoning.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الطب / 8434