It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Whoever invites people towards guidance will have a reward equal to that of those who follow him, without their rewards being diminished in any way. And whoever invites people towards misguidance will bear a sin equal to that of those who follow him, without their sins being diminished in any way.