It wasnarrated from Umm Salamah that when the Prophet (ﷺ)performed theSubh (morning prayer), while he said the Salam, he would say:
'Allahummainnias'aluka 'ilman nafi'an, wa rizqan tayyiban, wa 'amalanmutaqabbalan (O Allah, I ask You for beneficial knowledge, goodlyprovision and acceptable deeds).'" (FR)
English reference (FR): Vol. 1, Book 5, Hadith 925 (FR)
Arabic reference (FR): Book 5, Hadith 978 (FR)