ʿUyūn akhbār al-Riḍā

Hadith 349
repentance
349 - وَبِهذَا الإسناد قالَ: قالَ رَسُولَ اللَّهِ‏ صَلَّى اللهُ عَلَيْهِ وَآلِهِ: التائب من الذنب كَمَنْ لا ذنب لَهُ.
31-349 According to the same documentation, God’s Prophet (S) said, “One who repents from committing sins is like one who has not committed any sins.”
Source: Shaykh Muḥammad b. ʿAlī al-Ṣaduq