Abu Hurairah (May Allah be pleased with him) reported:
The Messenger of Allah (ﷺ) said, "He who calls others to follow the Right Guidance will have a reward equal to the reward of those who follow him, without their reward being diminished in any respect on that account."[Muslim]. (DE)
App reference (DE): Book 13, Hadith 7 (DE)
Arabic/English book reference (DE): Book 13, Hadith 1382 (DE)