It is narrated from the Mother of the Believers, Sayyidah Aishah (may Allah be pleased with her), that the Prophet (peace and blessings be upon him) used to say: "Allahumma inni as'aluka 'ilman nafi'an, wa a'udhu bika min 'ilmin la yanfa'" (O Allah, I ask You for beneficial knowledge, and I seek refuge in You from knowledge that does not benefit).
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Hisham bin Hassan (may Allah have mercy on him) except Quraysh bin Anas (may Allah have mercy on him)."