SHAFAQNA – Late Shia scholar, Kolayni in the noble book of Kafi  narrated in a chapter from Imams (AS) saying to refer to Surah Al-Qadr because it is mentioned in this Surah that every year has a Laylatul Qadr (the night of destiny). In this night the angels accompanied by the spirit [Jabril (AS)] will bring divine decrees to the earth. They must deliver these to someone, because ordinary people cannot be the host of angels and to take delivery of all divine decrees, therefore the only person who can be the host to angels and take delivery of divine decrees is Imam Zaman (AS).
 Al-Kafi, Vol. 1, Page 242 (chapter about Surah Al-Qadr and the related commentaries)
Translated from explanation by the Grand Ayatollah Javadi Amoli