«الإسلام: وهو التصديق والإقرار بالله تعالى»
Islam means affirming and professing faith in Allah.
The source requires this condition for a narrator in its legal-theoretical framework and separately discusses immaturity of understanding, severe inattentiveness, lack of uprightness and disbelief.
It expressly accepts reports by a woman, an enslaved person, or a blind person when the stated conditions are fulfilled. Their status or lack of sight does not itself establish an absence of precision and integrity. This reflects the historical categories used in the source.