It is written in the commentary of Majma’ul Bayan whoever recites surah Yaseen solely for seeking the pleasure of Allah (s.w.t.): All his sins will be forgiven and he will be given the reward equal to the reward of reciting the whole Qur’an 12 times.
Drinking the water in which this surah has been dissolved cures one of a thousand types of illnesses. The Holy Prophet said that everything has its heart and the heart of the Holy Qur’an is surah Yaseen. He also said that if this surah is recited in a graveyard then all punishment is lifted, for that day, from all the graves and the reciter gets the reward equal to the sum of all the good actions performed by all those who are buried in that graveyard.
For those who recite this surah, the heart of the holy Quran, after sunset, Allah would post 1000 angels
May ALLAH bless us all!