الكافي- ط الاسلامية, volume 2, page 546

4. It is narrated from him (narrator of the Hadith above) from certain individuals of his people from in a marfu ’ manner from the Imam (a.s.) who has said the following: “Whoever after every prayer, holds his beard in his right hand and says, ‘O the Owner of glory and magnanimity, have mercy upon me against fire,’ three times, with the left hand raised and the palms up to the sky and says, ‘Grant me safety from the painful torment,’ three times, then removes his hand from his beard and raises it with palms up to the sky and says, ‘O Majestic, O Magnanimous, O Beneficent, O Merciful,’ then changes the position of his hands and turns his palms up to the sky and says, ‘Grant me safety against painful torment,’ three times, ‘Grant al-Salat (favors) upon Muhammad and his family, the angels and the spirit,’ his sins are covered for him, is pleased with, plea for forgiveness for him is continued up to the time of his death, by all the creatures except the two heavy populations of Jinn and humankind. He after completing the testimonies of belief ( tashahhud) raising his hands says, ‘O Lord, grant me forgiveness, a decisive and ascertained forgiveness that does not leave any of sins that I have committed and that I will never commit any unlawful act thereafter. Grant me good health so that thereafter I will never face any suffering, grant me guidance so that thereafter I will never stray, benefit me O Lord by what You have instructed me with, turn it in my favor and not against me, grant me enough for sustenance and help me to remain content with it. O Lord, accept my repentance, O Allah, O Allah, O Allah, O Beneficent, O Beneficent, O Beneficent, O Merciful, O Merciful, O Merciful, grant me mercy against the roaring fire, extend for me sustenance from Your vast provisions, grant me guidance in disputed matters, in the matters of the truth by Your permission, protect me against Satan, the condemned to stoning, convey to Muhammad and the family of Muhammad (a.s.) a great deal of my greetings of peace, guide me with Your guidance, grant me wealth from Your wealth, allow me to be one of Your sincere friends and grant al-Salat (favors) upon Muhammad and his family, Amin.’ “The Imam said, ‘Whoever says this after each prayer Allah will return his spirit to him in his grave and he will be alive receiving sustenance, pampered and happy to the Day of Judgment.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.