What they said on governors keeping couriers to send dispatches

Al-Qasim (may Allah have mercy on him) said that the Prophet (peace and blessings be upon him) used to send messages by courier.

Talhah bin Yahya (may Allah have mercy on him) said that Umar bin Abd al-Aziz (may Allah have mercy on him) used to send messages by courier. A slave of his (may Allah have mercy on him) mounted a man on a post-mount without his permission. He (may Allah have mercy on him) summoned him and said: "Do not leave it until you have paid its value, then put its value into the public treasury."

Yahya bin Abi Kathir (may Allah have mercy on him) said that the Prophet (peace and blessings be upon him) said to the governors he had appointed: "When you send mail to me by a courier, send one with a handsome face and a good name."

The father of Isra'il bin Abi Ishaq (may Allah have mercy on him) said that Sayyiduna Mu'awiyah (may Allah be pleased with him) wrote to Abd al-Rahman bin Khalid (may Allah have mercy on him): "Send Jarir to me on the post-mount." So he (may Allah have mercy on him) sent him.