Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates: The Messenger of Allah (peace and blessings be upon him) was walking, and a camel driver was chanting poetry while driving the camels of the wives of the Prophet (peace and blessings be upon him). The Messenger of Allah (peace and blessings be upon him) smiled, and then he (the camel driver) began to make them move faster with his chanting. Upon this, the Prophet (peace and blessings be upon him) said to him: "Anjasha! Woe to you, be gentle with the glass vessels."