Ibn Qudamah writes in his book Minhaj Al-Qasidin [English translation and Arabic text below]:
We should know that outward manners are indicative of inward ones, in the sense that man’s practical deeds are guided by spiritual contemplation and his knowledge. Inward secrets implant deeds and adorn it. We will now highlight some manners of the Prophet, peace be upon him, in order to strengthen our faith by observing his noble manners.
We should know that outward manners are indicative of inward ones, in the sense that man’s practical deeds are guided by spiritual contemplation and his knowledge. Inward secrets implant deeds and adorn it. We will now highlight some manners of the Prophet, peace be upon him, in order to strengthen our faith by observing his noble manners.