Sahih Muslim 2697
Sahih Muslim · Book 48: The Book Pertaining to the Remembrance of Allah, Supplication, Repentance and Seeking Forgiveness · The Virtue Of Tahlil (Saying La Ilaha Ill-Allah), Tasbih (Saying Subhan Allah) And (Du'a) Supplication
Abu Malik reported on the authority Of his father that he heard Allah's Messenger (ﷺ) as saying to the person who bad come to him and asked him as to how he should beg his Lord, that he should utter these words:
حَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ ، حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ ، أَخْبَرَنَا أَبُو مَالِكٍ ، عَنْ أَبِيهِ ، أَنَّهُ سَمِعَ النَّبِيَّ صلى الله عليه وسلم وَأَتَاهُ رَجُلٌ فَقَالَ يَا رَسُولَ اللَّهِ كَيْفَ أَقُولُ حِينَ أَسْأَلُ رَبِّي قَالَ " قُلِ اللَّهُمَّ اغْفِرْ لِي وَارْحَمْنِي وَعَافِنِي وَارْزُقْنِي " . وَيَجْمَعُ أَصَابِعَهُ إِلاَّ الإِبْهَامَ " فَإِنَّ هَؤُلاَءِ تَجْمَعُ لَكَ دُنْيَاكَ وَآخِرَتَكَ " .
" O Allah, grant me pardon, have mercy upon me, protect me, provide me sustenance," 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.