Hazrat Abu Saeed Khudri (may Allah be pleased with him) narrates that once the Prophet (peace and blessings be upon him) said to the companions (may Allah be pleased with them), "Are you unable to recite one third of the Qur'an in one night?" This seemed very difficult to the companions (may Allah be pleased with them) and they said, "Who would have the strength to do that?" The Prophet (peace and blessings be upon him) said, "Recite Surah Ikhlas, for it is equal to one third of the Qur'an."