The Hasan Hadeeth is that which is narrated by a trustworthy narrator, and he has the same, with the exception of the precision, which is not a condition for a Hasan Hadeeth. So we may define it by saying it is that which is reported by trustworthy narrators, who have nominal precision, with a connected chain, that is safe from any Shath (oddity) and from any damaging deficiency.

Both categories, the Sahih and the Hasan are used as a proof and are to be acted upon.