As Salamu Alaikum wa Rahmatullahi wa Barakatuhu
Dua for Dunya and AkhirahAbu Malik reported on the authority of his father that he heard Allah's Messenger (Sallallahu Alayhi wa Sallam) as saying to the person who had come to him and asked him as to how he should beg his Lord, that he should utter these words:
Allahummaghfir lee warhamnee, wa ‘aafine warzuqnee and he collected his fingers together except his thumb and said: It is in these words (that there is supplication) which sums up for you (the good) of this world and that of the Hereafter. (Muslim)