Ya'laa bin Mamlak Radiyallahu 'Anhu says:
"He asked Ummul Mu'mineen Sayyiditina Ummi Salamah Radiyallahu 'Anha about the recital of Rasulullah Sallallahu 'Alayhi Wasallam". She replied: "He recited every word separately and clearly".
English reference: Book 43, Hadith 297
Arabic reference: Book 44, Hadith 314