Abdullah Ibn Abbas and Anas Ibn Malik
radhiallaho anhum ajmaeen) reported
that the Holy Prophet (sallal laahu alaihi wasallam) said,
Whoever recited Surah Zilzilah (99)
would get the reward of reciting half the Quran.
Whoever recited Surah al Kaafirun (109)
would get a reward as if reading a quarter of the Quran.
Whoever recited Surah al Ikhlas (112)
would get a reward as if reading one third of the Quran.