Sunan Ibn Majah, Book 34, Hadith 25 (In-Book) ⓘ
It was narrated that Abu Hurairah said: "The Messenger of Allah (saas) said: 'There is no supplication that a person can say that is better than: Allahumma inni as'aluka al-mu'afah fid-dunya wal-akhirah (O Allah, I ask You for Al-Mu'afah in this world and in the Hereafter).'"
حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، حَدَّثَنَا وَكِيعٌ، عَنْ هِشَامٍ، صَاحِبِ الدَّسْتَوَائِيِّ عَنْ قَتَادَةَ، عَنِ الْعَلاَءِ بْنِ زِيَادٍ الْعَدَوِيِّ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " مَا مِنْ دَعْوَةٍ يَدْعُو بِهَا الْعَبْدُ أَفْضَلَ مِنَ - اللَّهُمَّ إِنِّي أَسْأَلُكَ الْمُعَافَاةَ فِي الدُّنْيَا وَالآخِرَةِ " .
also referenced under: Hadith 3851 (Reference) & Volume 5, Book 34, Hadith 3851 (DarusSalam)