سورة الأنفال

Imam Baqir (peace be upon him): إِنَّ شَرَّ الدَّوَابِّ عِنْدَ اللهِ الصُّمُّ [Surely the vilest of animals, in Allah's sight, are the deaf]; this verse was revealed concerning Banu Abd al-Dar, and none of them had embraced Islam except Mus'ab ibn Umayr and an ally of theirs named Suwaybit.

Imam Baqir (peace be upon him): They are Banu Abd al-Dar, and none of them had embraced Islam except Ibn Umayr and Suwayd ibn Harmala, and they used to say: "We are deaf, dumb and blind to what Muhammad (peace be upon him and his family) has brought." All of them were killed at the Battle of Uhud, and they were the standard-bearers of the battle.

Imam Kazim (peace be upon him): O Hisham! Allah, Blessed and Exalted, has given glad tidings to the people of intellect and understanding in His Book, then He has censured [in this manner] those who do not reflect: إِنَّ شَرَّ الدَّوَابِّ عِنْدَ اللهِ الصُّمُّ الْبُکْمُ الَّذِینَ لا یَعْقِلُون [Surely the vilest of animals, in Allah's sight, are the deaf, the dumb, who do not understand].