• ʿĀdil (عادل): an upright, trustworthy narrator.
• Tāmm al-ḍabṭ (تام الضبط): a narrator who remembers or writes the Hadith very carefully, together with its sanad.
• Both qualities are required of every narrator.
We have studied two of the five conditions of ṣaḥīḥ li-dhātihi. These two alone do not establish that classification; the other three conditions are also necessary.