It is narrated from Hazrat Umm Salamah (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) used to supplicate after the Fajr prayer: "O Allah, I ask You for beneficial knowledge, accepted deeds, and lawful sustenance."
Hadith Referenceمسند احمد / مسند النساء / 26521
Hadith Gradingحکم دارالسلام:إسناده ضعيف لإبهام مولى أم سلمة، ثم إنه قد اختلف فيه على سفيان