Al-Agharr al-Muzani, who was one amongst the Companions (of the Holy Prophet) reported that Allah's Messenger (ﷺ) said: There is (at times) some sort of shade upon my heart, and I seek forgiveness from Allah a hundred times a day.
Hadith ReferenceSahih Muslim / The Book Pertaining to the Remembrance of Allah, Supplication, Repentance and Seeking Forgiveness / Hadith: 2702