Sunan Abi Dawud 4644
سنن أبي داود#4644Sahihحَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا ابْنُ إِدْرِيسَ، عَنِ الأَعْمَشِ، قَالَ سَمِعْتُ الْحَجَّاجَ، يَقُولُ عَلَى الْمِنْبَرِ هَذِهِ الْحَمْرَاءُ هَبْرٌ هَبْرٌ أَمَا وَاللَّهِ لَقَدْ قَرَعْتُ عَصًا بِعَصًا لأَذَرَنَّهُمْ كَالأَمْسِ الذَّاهِبِ يَعْنِي الْمَوَالِي .
Al-A’mash said:These clients (i.e., non-Arabs) are to be struck and cut off. I swear by Allah, if I strike a stick with a stick, I would annihilate them like the day that passed away. Al-hamra means clients or non-Arabs
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 42:49