Musnad Ahmad 32:2079

'Affan narrated to us, Khalaf ibn Khalifah narrated to us, Hafs ibn 'Umar narrated to us, from Anas ibn Malik, who said: It was among the supplications of the Messenger of Allah, peace and blessings of Allah be upon him: "O Allah, I seek refuge in You from knowledge that does not benefit, and a heart that does not humble itself, and a supplication that is not heard, and a soul that is not satisfied. O Allah, I seek refuge in You from these four."