Reciting Surat Ya Sin for a loved one dying on the deathbed

They were present with Ghudayf b. al-Harith al-Thumali when he was on his deathbed. He asked if there was anyone among them who could recite "Ya-Sin." So, Salih b. Shurayh al-Sakuni recited it, and when he reached the fortieth verse, Ghudayf passed away.

The elders used to say that when "Ya-Sin" is recited in the presence of someone who is dying, their suffering is alleviated. Safwan mentioned that Isa b. al-Mu'tamir recited it for Ibn Ma'bad.  

أَنَّهُمْ حَضَرُوا غُضَيْفَ بْنَ الْحَارِثِ الثُّمَالِيَّ حِينَ اشْتَدَّ سَوْقُهُ فَقَالَ هَلْ مِنْكُمْ أَحَدٌ يَقْرَأُ يس؟ قَالَ فَقَرَأَهَا صَالِحُ بْنُ شُرَيْحٍ السَّكُونِيُّ فَلَمَّا بَلَغَ أَرْبَعِينَ مِنْهَا قُبِضَ

قَالَ وَكَانَ الْمَشْيَخَةُ يَقُولُونَ إِذَا قُرِئَتْ عِنْدَ الْمَيِّتِ خُفِّفَ عَنْهُ بِهَا قَالَ صَفْوَانُ وَقَرَأَهَا عِيسَى بْنُ الْمُعْتَمِرِ عِنْدَ ابْنِ مَعْبَدٍ