Hazrat Abdullahra relates that the Holy Prophetsa frequently used to recite this prayer:
اَللّٰهُمَّ إِنِّی أَسْأَلُکَ الْهُدٰی وَالتُّقٰی وَالْعَفَافَ وَالْغِنٰی
“O Allah, I beg You to grant me guidance and Your fear. I beg You for chastity and contentment.”
(Sahih Muslim, Kitab al-Zikr)