(45) باب فَضْلِ قِرَاءَةِ { قُلْ هُوَ اللَّهُ أَحَدٌ}
Abu Huraira reported:
The Messenger of Allah (ﷺ) came out to us and said: I am going to recite before you one-third of the Qur'an. He (the Holy Prophet) then recited:" Say: He is Allah, One--Allah, the Eternal," to the end of the Surah.
Reference: Sahih Muslim 812 b
In-book reference: Book 6, Hadith 317
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1772