Sahih Muslim Book 4, Hadith Number 1801.

Chapter : Reciting the Qur’an leisurely and distinctively and abstaining from reciting it too hurriedly, and permission to recite two suras of more than two in a Rak’ah.

‘Alqama reported: I met Abu Darda’, and he said to me: To which country do you belong? I said: I am one of the people of Iraq. He again said: To which city? I replied: City of Kufa. He again said: Do you recite according to the recitation of ‘Abdullah b. Mas’ud? I said: Yes. He said: Recite this verse (By the night when it covers) So I recited it: (By the night when it covers, and the day when it shines, and the creating of the male and the female). He laughed and said: I have heard the Messenger of Allah (may peace be upon him) reciting like this.