Hadithcore
Sunan Abi Dawud, 4644
sahih· Al-Albani

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.

حَدَّثَنَا 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 ‏.‏

References2 variants
In-Book Reference
Book 42, Hadith 49
English Reference
Book 41, Hadith 4627