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". (FR)
English reference (FR): Book 43, Hadith 297 (FR)
Arabic reference (FR): Book 44, Hadith 314 (FR)