Say, “He is Allah, [who is] One, Allah, the Eternal Refuge, He neither begets nor is born, Nor is there to Him any equivalent.”
Prophet (S.A.W.) said that reciting Surah Al-Ikhlas (Surah No. 112) one time is equal to one third of the Quran. So reciting it three times is equal to reward of reading entire Quran.
(Surah Ikhlas: 112) (Sahih Bukhari: 5015)