It is narrated from Hazrat Anas bin Malik (may Allah be pleased with him) that this statement of the Prophet (peace and blessings be upon him) was conveyed to me, but I did not hear it myself: "A people will come among you who will worship and be religious to such an extent that people will be amazed at their abundance of worship, and they themselves will fall into self-admiration. These people will exit from the religion just as an arrow exits from the prey."