Musannaf Ibn Abi Shayba 33:933

Yazid ibn Harun narrated to us, he said: Mis'ar informed us, from Sa'd ibn Ibrahim, from Talq ibn Habib, who said: "Indeed, the rights of Allah are too heavy for the servants to fulfill, and the blessings of Allah are too numerous for the servants to count. However, become repentant in the morning and become repentant in the evening."