It was narrated that Abu Hurairah said:
"One of the supplications that the Prophet used to say was: 'Allahumma, inni a'udhu bika min 'ilmin la yanfa'u, wa mindu'a'in la yusma'u, wa min qalbin la yakhsha'u, wa min nafsin la tashba'u [O Allah, I seek refuge with You from knowledge that is of no benefit, from a supplication that is not heard, from a heart that does not fear (You) and from a soul that is not satisfied].'"
English reference: Vol. 1, Book 1, Hadith 250
Arabic reference: Book 1, Hadith 258