رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 665
The Book of Miscellany
Obligation of Obedience to the Ruler in what is Lawful and Prohibition of Obeying them in what is Unlawful
وَعَنْ أَنَسٍ رَضِيَ اللَّهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ “اسْمَعُوا وَأَطِيعُوا، وَإِنِ اسْتُعْمِلَ عَلَيْكُمْ عَبْدٌ حَبَشِيٌّ، كَأَنَّ رَأْسَهُ زَبِيبَةٌ” ((رَوَاهُ البخارى)).
Anas (May Allah be pleased with him) reported: The Messenger of Allah (ﷺ) said, "Hear and obey even if an Abyssinian slave whose head is like a raisin is placed in authority over you." [Al- Bukhari].
Riyad as-Salihin, 665