The Peak of Eloquence · Hadith 2163 (#Passage #522)

أَوَّلُهَا: النَّدَمُ عَلَى مَا مَضَى.

The first is to repent over the past;

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).