Encyclopedia of Prophetic Hadiths

"At the end of time, there will come a people, young in age and foolish in mind. They will speak about the best words of creation, but they will pass through Islam as an arrow passes through its target. Their faith will not go beyond their throats. Wherever you encounter them, kill them, for killing them is a reward for the one who kills them on the Day of Judgment."

"Whoever introduces something into this matter of ours that is not part of it will have it rejected."

"Whoever calls to guidance shall receive a reward similar to the rewards obtained by those who followed him without diminishing anything from their rewards. And whoever calls to misguidance shall incur a sin similar to the sins incurred by those who followed him without diminishing anything from their sins."

"Whoever introduces into this matter of ours (Islam) something that does not belong to it shall have it rejected." [Agreed upon] A narration by Muslim reads: "Whoever does something that is not in accordance with this matter of ours shall have it rejected."

"None of you (truly) believes until his personal desire complies with what I have come with."