(6) باب مَنْ سَنَّ سُنَّةً حَسَنَةً أَوْ سَيِّئَةً وَمَنْ دَعَا إِلَى هُدًى أَوْ ضَلاَلَةٍ
Abu Huraira reported Allah's Messenger (ﷺ) as saying:
He who called (people) to righteousness, there would be reward (assured) for him like the rewards of those who adhered to it, without their rewards being diminished in any respect. And he who called (people) to error, he shall have to carry (the burden) of its sin, like those who committed it, without their sins being diminished in any respect.
Reference: Sahih Muslim 2674
In-book reference: Book 47, Hadith 30
USC-MSA web (English) reference(deprecated numbering scheme): Book 34, Hadith 6470