لا تَشْتَرِ العَبْدَ إِلَّا وَالعَصَا مَعَهُ
إِنَّ العَبِيدَ لأَنْجَاسٌ مَنَاكِيدُ
Do not buy a slave without the stick with him
For slaves are impure and wretched
المصدر · Source: Diwan al-Mutanabbi. Sharh al-Ukbari. Satirizing Kafur.