"...be repentful in the morning and evening"
Talq ibn Habeeb said:
((Indeed the rights of Allaah are far greater than the servant can fulfill, and indeed the blessings of Allaah are far more than can be counted, however, be repentful in the morning and evening (i.e. throughout the day))).
Siyar A'laam an-Nubalaa. - Volume 4, Page 622