(29) باب مَدِّ الْقِرَاءَةِ
Narrated Qatada:
Anas was asked, "How was the recitation (of the Qur'an) of the Prophet?' He replied, "It was characterized by the prolongation of certain sounds." He then recited: In the Name of Allah, the Most Beneficent, the Most Merciful prolonging the pronunciation of 'In the Name of Allah, 'the most Beneficent,' and 'the Most Merciful.
Reference: Sahih al-Bukhari 5046
In-book reference: Book 66, Hadith 70
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 6, Book 61, Hadith 566