Sayyiduna Jabir (may Allah be pleased with him) narrates that he heard the Prophet (peace and blessings be upon him) saying:
'Allahumma inni as'aluka ilman nafi'an, wa amalan mutaqabbalan'
(O Allah! I ask You for beneficial knowledge and accepted deeds.)
Al-Tabarani recorded it in al-Mu'jam al-Awsat, and its narrators have been declared trustworthy.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدعية / 17418