Messenger of Allah ﷺ was on a journey and he had a black slave called Anjasha, and he was driving the camels (very fast, and there were women riding on those camels). Messenger of Allah ﷺ said, "Waihaka (May Allah be merciful to you), O Anjasha! Drive slowly (the camels) with the glass vessels (women)!"  

كَانَ رَسُولُ اللَّهِ ﷺ فِي سَفَرٍ وَكَانَ مَعَهُ غُلاَمٌ لَهُ أَسْوَدُ يُقَالُ لَهُ أَنْجَشَةُ يَحْدُو فَقَالَ لَهُ رَسُولُ اللَّهِ ﷺ وَيْحَكَ يَا أَنْجَشَةُ رُوَيْدَكَ بِالْقَوَارِيرِ