Aḥmad bin Ḥafṣ on earning through lawful means

Aḥmad bin Ḥafṣ ^{[d. 258H]} (may Allāh have mercy upon him) relates about Ismā’īl’s death: I visited Abul-Ḥasan (Ismā’īl), the father of Abū ‘Abdullāh (al-Bukhārī) ^{[d. 256H]}, when he was dying, and he said: ‘I know of no dirham from my wealth that was earned through unlawful means, nor of any dirham (from my wealth) that was earned through dubious means.’ Aḥmad said: ‘When he said that, I thought very disparagingly about myself.’

Translation: The biography of Imām Bukhārī (pg. 16), authored by Ṣalāḥuddīn ibn ‘Alī and published by Dārussalām