Sahih al-Bukhari 6150
In-book no 6150حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا عَبْدُ الْوَارِثِ، عَنْ عَبْدِ الْعَزِيزِ، عَنْ أَنَسٍ، قَالَ كَانَ أَكْثَرُ دُعَاءِ النَّبِيِّ صلى الله عليه وسلم " اللَّهُمَّ رَبَّنَا آتِنَا فِي الدُّنْيَا حَسَنَةً، وَفِي الآخِرَةِ حَسَنَةً، وَقِنَا عَذَابَ النَّارِ ".
Narrated Anas: The most frequent invocation of The Prophet (ﷺ) was: "O Allah! Give to us in the world that which is good and in the Hereafter that which is good, and save us from the torment of the Fire." (2.201)