عَنْ أُمِّ سَلَمَةَ رَضِيَ اللَّهُ عَنْهَا أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ كَانَ يَقُولُ إِذَا صَلَّى الصُّبْحَ حِينَ يُسَلِّمُ: ((اللَّهُمَّ إِنِّي أَسْأَلُكَ عِلْمًا نَافِعًا وَرِزْقًا وَاسِعًا (وَفِي رِوَايَةٍ طَيِّبًا) وَعَمَلًا مُتَقَبَّلًا))
It is narrated from Sayyida Umm Salama (may Allah be pleased with her) that when the Messenger of Allah (peace and blessings be upon him) would finish the morning prayer with salam, he would recite this supplication: "O Allah! Indeed, I ask You for beneficial knowledge, ample provision, and accepted deeds." In another narration, instead of "ample" (wasi'an), the word "pure" (tayyiban) is used.