Narrated Abu Huraira: He said, "I heard the Messenger of Allah (ﷺ) say, 'By Allah! I pray and repent to Allah more than seventy times a day.
Source: Bukhari: 6307
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset