It is narrated from Hazrat Abu Ayyub Ansari (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Is any one of you unable to recite one third of the Qur'an in a night? Surah Ikhlas is equal to one third of the Qur'an, so whoever recites Surah Ikhlas three times at night, it is as if he has recited one third of the Qur'an.