Try to recite Surah Ikhlaas as much as possible. Don't miss out this huge reward especially in Ramadan!
Abu Sa’eed al-Khudri (may Allaah be pleased with him) said: “The Prophet (peace and blessings of Allaah be upon him) said to his Companions: ‘Could any one of you not recite one third of the Qur’aan in one night?’ They found the idea too difficult, and said, ‘Who among us could do that, O Messenger of Allaah?’ He said, ‘Allaahu’l-ahad, al- samad [i.e., Soorat al-Ikhlaas] is one third of the Qur’aan.’”
Abu Sa’eed al-Khudri (may Allaah be pleased with him) said: “The Prophet (peace and blessings of Allaah be upon him) said to his Companions: ‘Could any one of you not recite one third of the Qur’aan in one night?’ They found the idea too difficult, and said, ‘Who among us could do that, O Messenger of Allaah?’ He said, ‘Allaahu’l-ahad, al- samad [i.e., Soorat al-Ikhlaas] is one third of the Qur’aan.’”
(Reported by al-Bukhaari, 4628)
From Qutaadah ibn al-Nu’maan (may Allaah be pleased with him) who said that a man stayed up to worship Allaah at the time of the Prophet (peace and blessings of Allaah be upon him) just before dawn and recited “Qul huwa Allaahu ahad,” but did not recite anything else. In the morning, the man came to the Prophet (peace and blessings of Allaah be upon him) and told him about this, thinking that perhaps he was not doing enough. The Messenger of Allaah (peace and blessings of Allaah be upon him) said: “By the One in Whose hand is my soul, it is equivalent to one-third of the Qur’aan.”
(al-Bukhaari, 4627).
From Qutaadah ibn al-Nu’maan (may Allaah be pleased with him) who said that a man stayed up to worship Allaah at the time of the Prophet (peace and blessings of Allaah be upon him) just before dawn and recited “Qul huwa Allaahu ahad,” but did not recite anything else. In the morning, the man came to the Prophet (peace and blessings of Allaah be upon him) and told him about this, thinking that perhaps he was not doing enough. The Messenger of Allaah (peace and blessings of Allaah be upon him) said: “By the One in Whose hand is my soul, it is equivalent to one-third of the Qur’aan.”
(al-Bukhaari, 4627).