It has been reported from the Holy Prophet (peace and blessing be upon his family) : Whoever recites on the twenty-first night of the month of Sha’ban, a 8 (4×2) Rakat prayer, reciting in each unit Surah Fatiha once and Surah Ikhlaas, Surah Falaq and Surah An Nas once.
Good deeds equal to stars in the sky would be recorded and his rank would be raised.