Sahl bin Mu'adh bin Anas narrated from his father that:
The Prophet said: "Whoever teaches some knowledge will have the reward of the one who acts upon it, without that detracting from his reward in the slightest." (DE)
English reference (DE): Vol. 1, Book 1, Hadith 240 (DE)
Arabic reference (DE): Book 1, Hadith 246 (DE)