Kitāb al-Zuhd

Hadith 204
repentanceintention
حماد بن عيسى عن إبراهيم بن عمر عن أبي عبد الله عليه السلام قال ليس منا من لم يحاسب نفسه في كل يوم فان عمل خيرا (حسنا) استزاد الله منه وحمد الله عليه وان عمل شرا استغفر الله منه وتاب إليه.
19.Ḥammād ibn ʿĪsā narrated from Ibrāhīm ibn ʿUmar, from Abū ʿAbdillāh (a) who said, “One who does not hold himself to account every day is not from us. [Every believer should take account of his actions daily and] if he has done a good deed, he should seek more of it from Allah and praise Allah for it, and if he has done an evil deed, he should seek forgiveness from Allah for it and turn penitently to Him.”
Source: Ḥusayn b. Saʿīd al-Ahwāzī