(9) بَاب فَضْلِ الدُّعَاءِ بِاللَّهُمَّ آتِنَا فِي الدُّنْيَا حَسَنَةً وَفِي الْآخِرَةِ حَسَنَةً وَقِنَا عَذَابَ النَّارِ
Qatada asked Anas which Supplication Allah's Apostle (ﷺ) frequently made. He said:
The supplication that he (the Prophet made very frequently is this:" O Allah, grant us the good in this world and the good in the Hereafter and save us from the torment of Hell-Fire." He (Qatada) said that whenever Anas had to supplicate he made this very supplication, and whenever he (intended) to make another supplication he (inserted) this very supplication in that.
Reference: Sahih Muslim 2690 a
In-book reference: Book 48, Hadith 36
USC-MSA web (English) reference(deprecated numbering scheme): Book 35, Hadith 6506