question #3 Sahih Muslim 812b, Book 6, Hadith 317 : What is the importance of reciting specific Surahs from the Qur’an in Islamic practice?

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.