Abu Said has narrated that he heard the Prophet saying: “Isn’t every one of you able to recite one-third of the Quran during a night?” They thought it was tough, so they asked: “Who can do that, O Apostle of God?” He responded: “He is God, the One and Only is one-third of the Quran

Bukhari narrated from Anas bin Malik “A man from among the Ansar led the Prayers in the Quba Mosque. His practice was that in every rakah he first recited this Surah and then would join another Surah to it. The people objected to it and said to him:”Don’t you think that Surah Ikhlas is by itself enough? Why do you join another Surah to it? You should either recite only this Surah or should leave it and recite some other Surah. He said: “I cannot leave it, I would rather give up leadership in the Prayer if you so desired. At last, the matter was brought before the Prophet of God PBUH. He asked the man, “What prevents you from conceding what your companions desire? What makes you recite this particular Surah in every rakah?”The man replied: “I have a great love for it.”The Holy Prophet remarked: “Your this love for this Surah has earned you entry into Paradise.”