Sahih Muslim Hadith 1908

A person named Nabik bin Sinan came to Abdullah (bin Mas'ud رضی اللہ تعالیٰ عنہ) and said: Abu 'Abdul-Rahman, how do you recite this word (alif) or (ya)? Would you read It as: min ma'in ghaira asin or au min ma'in ghaira ghaira yasin. (al-Qur'an, xlvii. 15)? 'Abdullah said: You (seem to) have memorised the whole of the Qur'an except this. He (again) said: I recite all the mufassal surahs in one rak'ah. Upon this 'Abdullah رضی اللہ تعالیٰ عنہ said: (You must have been reciting It) hastily like the recitation of poetry. Verily. there are people who recite the Qur'an, but it does not go down beyond their collar bones. It is (a fact with the Qur'an) that it is beneficial only when it settles in the heart and is rooted deeply in it. The best of (the acts) in prayer are bowing and prostration. I am quite aware of the occasions when the Messenger of Allah ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) combined together two surahs in every rak'ah. 'Abdullah then stood up and went out with 'Alqama following in his footstep. He said Ibn Numair had told him that the narration was like that: A person belonging to Banu Bajila came to 'Abdullah رضی اللہ تعالیٰ عنہ , and he did not mention (the name of) Nahik bin Sinan.