The virtues of Surah Ikhlass (112)

Anas mentioned that a man said to the Prophet (salAllahu alayhi wasalam) , ‘I really love this surah’. The Prophet replied, ‘And your love for it will enable you to enter paradise’
[at-Tirmidhi 2826/A, Riyad as-Salihin by Imam an-Nawawi Ch.183 #1013]

Abu Sa’id al-Khudri (radiAllahu anhu) reported that the Messenger of Allah (salAllahu alayhi wasalam) said about the surah, “Say: He is Allah, Absolute Oneness” (112), ‘By Him in Whose hand my soul is, it is equal to one third of the Qur’an!’
[Sahih al-Bukhari 6:61 #533, Riyad as-Salihin by Imam an-Nawawi Ch.183 #1010]

“Qul Hu Allahu Ahad” is equal to a third of the Qur’an and “Qul ya ayyuhal Kafirun” is equal to a fourth of the Qur’an.”
[at-Tabarani, classed as Sahih]

Abu Huraira (radiAllahu anhu) reported that the Messenger of Allah (salAllahu alayhi wasalam) said that “Say: He is Allah, Absolute Oneness” is equal to a third of the Qur’an.

[Muslim, Riyad as-Salihin by Imam an-Nawawi Ch.183 #1012]

Abdullah Ibn ‘Abbas and Anas Ibn Malik (radiAllahu anhum) reported that the Prophet (salAllahu alayhi wasalam) said, ‘Whoever recited Surah Zilzilah (99) would get the reward of reciting half the Qur’an. Whoever recited surah al Kafirun (109) would get a reward as if reading a quarter of the Qur’an. Whoever recited Surah al Ikhlas (112) would get a reward as if reading one third of the Qur’an’.
[at-Tirmidhi 2818/A]

Abu Sa’id al-Khudri (radiAllahu anhu) reported that the Messenger of Allah (salAllahu alayhi wasalam) said to his Companions, “Are any of you unable to recite a third of the Qur’an in a night?” That was difficult for them and they said, “Which of us is able to do that, Messenger of Allah?” He said, “[The surah] ‘Say: He is Allah, Absolute Oneness, Allah, the Everlasting Sustainer of all’ (112) constitutes a third of the Qur’an.’”
[Sahih al-Bukhari 6:61 #534, Riyad as-Salihin by Imam an-Nawawi Ch.183 #1010]

A’isha (radiAllahu anha) reported that whenever the Prophet (salAllahu alayhi wasalam) went to bed every night, he used to cup his hands together and blow over it after reciting Surat Al-Ikhlas, Surat Al-Falaq and Surat An-Nas, and then rub his hands over whatever parts of his body he was able to rub, starting with his head, face and front of his body. He used to do that three times.
[Sahih al-Bukhari 6:61 #536]