Sahih al-Bukhari 4646
Sahih al-Bukhari · Book 65: Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh)) · "Verily! The worst of (moving) living creatures with Allah are the deaf and the dumb, those who understand not (i.e., the disbelievers) ." (V.8:22)
Narrated Ibn `Abbas:
حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ ، حَدَّثَنَا وَرْقَاءُ ، عَنِ ابْنِ أَبِي نَجِيحٍ ، عَنْ مُجَاهِدٍ ، عَنِ ابْنِ عَبَّاسٍ ، {إِنَّ شَرَّ الدَّوَابِّ عِنْدَ اللَّهِ الصُّمُّ الْبُكْمُ الَّذِينَ لاَ يَعْقِلُونَ} قَالَ هُمْ نَفَرٌ مِنْ بَنِي عَبْدِ الدَّارِ.
Regarding the Verse: "Verily! The worst of beasts in the Sight of Allah are the deaf and the dumb---- those who understand not." (8.22) (The people referred to here) were some persons from the tribe of Bani `Abd-Addar.