What does Lailatul Mubarakah mean:
In this connection, the Mufassirin have related 2 opinions. One that Lailatul Mubarakah means Shab Baraat and the other that it means Shab Qadr. To reconcile (Tatbeeq) these 2 interpretations, it is said that about Lailatul Mubarakah, it is said: Dukhan-4
This shows that in this blessed night decisions are taken and it is mentioned in the Hadith that decisions are taken on the 15th night of Sha’abaan and they are given to the respective angels in Lailatul Qadr. Thus, if Lailatul Mubarakah is interpreted as Shab Qadr, it means that the angels are given the orders on that night and if Shab Baraat is taken, then it means taking the decisions.
It is given in Hashiya Al Jaml alal Jalalain, Vol. 4, Pg No: 100 and in Ma'alim Ut Tanzeel:
Translation: It has been narrated on the authority of Hadhrat Abdullah Bin Abbas (May Allah be well pleased with them): Verily! Allah (Subhanahu wa Ta’ala) makes the decisions in Shab Baraat and passes them on to those who are responsible in Shab Qadr.