Chapter 43: General Behavior (Kitab Al-Adab)
Abu Qatadah said: We were sitting with 'Imran b. Hussain and Bushair b. Ka 'b was also there. 'Imran b. Hussain reported the Messenger of Allah (ﷺ) as saying: Modesty is good altogether, or he said: Modesty is altogether good. Bushair b. Ka 'b said: We find in some books that there is a modesty which produces peace and dignified bearing, and there is a modesty which produces weakness. 'Imran b. Hussain repeated the same words. So 'Imran became angry so much so that his eyes became red, and he said: Don’t you see that I am transmitting a tradition from the Messenger of Allah (ﷺ) and you are mentioning something from your books? He (Qatadah) said: We said: Abu Nujaid, it is sufficient.
Sunan Abi Dawud 4796