(1) باب فِي كَسْبِ الْمُعَلِّمِ
A similar tradition has also been transmitted by 'Ubadah b. al-Samit through a different chain of narrators, but the former tradition is more perfect. This version has:
I said: What do you think about it, Messenger of Allah? He said: A live coal between your shoulders which you have put around your neck or hanged it. (FR)
Reference (FR): Sunan Abi Dawud 3417 (FR)
In-book reference (FR): Book 24, Hadith 2 (FR)
English translation (FR): Book 23, Hadith 3410 (FR)