Anas reported that Allah's Messenger (ﷺ) had in one of his journeys his black slave who was called Anjasha along with him. He goaded by singing the songs of camel-driver. Thereupon Allah's Messenger (ﷺ) said: Anjasha, drive slowly as you are driving the mounts who are carrying glass vessels
Anas reported that Allah's Apostle (ﷺ) came to his wives as the camel-driver who was called Anjasha had been driving the camels on which they were riding. Thereupon he said: Anjasha, be careful, drive slowly for you are driving the mounts who carry vessels of glass. Abu Qilaba said that Allah's Messenger (ﷺ) uttered words which if someone had uttered amongst you, you would have found fault with him.
Anas bin Malik (RA) reported that Umm Sulaim was with the wives of Allah's Apostle (ﷺ) and a camel-driver had been driving (the camels) oil which they were riding. Thereupon Allah's Apostle (ﷺ) said: Anjasha, drive slowly, for you are carrying (on the camels) vessels of glass.
Anas reported that Allah's Messenger (صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ) had a camel-driver who had a very melodious voice. Allah's Messenger (صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ) said to him: Anjasha, drive slowly; do not break the vessels of glass, meaning the weak women.