Sahih Muslim Book 4, Hadith Number 1753.

Chapter : Excellence of the reciting of the Qur’an by one who is more skilled and proficient before one who is inferior to him.

‘Abdullah (b. Mas’ud) reported: I was in Hims when some of the people asked me to recite the Qur’an to them. So I recited Surah Yusuf to them. One of the persons among the people said: By Allah, this is not how it has been sent down. I said: Woe upon you ! By Allah, I recited it to the Messenger of Allah (may peace be upon him) and he said to me: You have (recited) it well. I was talking with him (the man who objected to my recitation) that I sensed the smell of wine from him. So I said to him. Do you drink wine and belie the Book (of Allah)? You would not depart till I would whip you. So I lashed him according to the prescribed punishment (for the offence of drinking wine).