It was narrated that Abu Hurairah said:
"The Messenger of Allah said: 'There is no caller who invites people to a thing but on the Day of Resurrection he will be made to stand next to that to which he called others, even if he only called one another person.'" (ID)
English reference (ID): Vol. 1, Book 1, Hadith 208 (ID)
Arabic reference (ID): Book 1, Hadith 213 (ID)