Chapter 35: Supplication
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).'"
Sunan Ibn Majah 3851