Answered by: Moulana Muhammad Imad Ali
Assalamu Alaikum Wa Rahmatullah!
What is the importance of Surah Yaseen, and what are its benefits?
بِسْمِ اللهِ الرَّحْمنِ الرَّحِيْم
In the name of Allah, the Most Gracious, the Most Merciful.
Assalamu Alaikum Wa Rahmatullahi Wa Barakaatuh,
There are many virtues of reciting Surah Yaseen mentioned in the ahadith of the Prophet of Allah (peace be upon him).
The Prophet of Allah (pbuh) has said, “Everything has a heart and Surah Yaseen is the heart of the Quran. Whosoever recites Surah Yaseen once Allah will record the reward of reciting the Quran 10 times.” 
It has been reported by Sayyidatuna Aaisha (may Allah be pleased with her) that the Prophet of Allah (pbuh) said, “There is a Surah in the Quran that intercedes for its reciter and forgives its listener. Know! It is Surah Yaseen. It is called ‘Mu’immah’ in the Torah. It was enquired, what is Mu’immah? The Prophet of Allah (pbuh) said, it embraces the person with the goodness of this world and removes the dismay of the hereafter.” 
Sayyiduna Ataa Bin Abi Rabaah (may Allah be pleased with him) states that the Prophet of Allah (pbuh) said: “Whosoever recites Surah Yaseen in the early part of the day his needs will be fulfilled.” 
Abu Darda (RA) narrates that whoever recites Surah Yaseen close to a dying person, then his death will be an easy one. 
It is also advised to recite Surah Yaseen during difficult times.
Follow the links below for more details:
 Sunan Tirmidhi P.116 V.2
 Hashiya of Tafsir Jalalalayn P.368
 Mishkaatul Masabeeh P.189
 Recorded by Ad-Dailami and Ibn Hibban
Only Allah knows best
Written by Moulana Muhammad Imad Ali
Checked and approved by Mufti Mohammed Tosir Miah
Darul Ifta Birmingham