In the commentary of Burhan it is narrated from Imam Ja’far as-Sadiq that whoever recites the three Tawaseen (ie. the three surahs beginning with Ta-Seen) on every Thursday night, will be counted from the Awliyaa-ullah (friends of Allah) and will be under the protection of Allah (s.w.t.).
The reward for reciting this surah is so great that when the person sees the reward he has gotten from it (on the Day of Judgement) he will be pleased.
The Holy Prophet (s.a.w.) said that the one who recites this surah will come out of his grave reciting the Shahadah or Kalimah, bearing witness in the Oneness of Allah (s.w.t.).
Reciting surah ash-Shu’ara at dawn is compared to the recitation of all the heavenly books that have been revealed.
Frequent recitation of this surah also ensures protection from thieves and from death by drowning or being burnt.
Drinking water in which this surah was dissolved protects one from all types of ailments.
May Allah grant us success both in this life and the after. Aamen.