In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
Answering your question, the late Saudi scholar, Sheikh Ibn Baz (may Allah have mercy on him) stated:
With regard to singling out a particular day or night, this is bidah (innovation) and there is no basis for this.
The Prophet (peace be upon him) said:
“Whoever innovates anything in this matter of ours (Islam) that is not a part of it will have it rejected.” (Agreed upon)
The Prophet also said:
“Whoever does anything that is not a part of this matter of ours (Islam) will have it rejected.” (Muslim)
Almighty Allah knows best.