It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) used to supplicate: "O Allah! I seek refuge in You from a word that is not heard, from a deed that is not raised, from a heart that does not fear, and from knowledge that does not benefit." (O Allah! I seek refuge in You from a supplication that is not heard, from a deed that is not accepted, from a heart that does not fear, and from knowledge that does not benefit.)