868 – ʿAbd Allah narrated to us; my father narrated to us; ʿAbd al-Raḥmān narrated to us; Muʿāwiyah ibn Ṣāliḥ narrated to us, from ʿAdī ibn ʿAdī, who said: ʿAbd Allah ibn Masʿūd said, “Woe to the one who remains ignorant—had Allah so willed, He would have taught him; and woe, seven times over, to the one who knows yet fails to act.”