Dhul Qa’da, Dhul Hijjah, Muharram and Rajjab are the four muhtaram sacred months (arba’t al hurum)
the night of Mi’raaj may have been in this month but no authentic reports.
On the night of the First Thursday of the month – superogatory prayers 12 units in 2s – NO evidence for such prayers in Saheeh or even Dha’eef hadith. Several ‘Ulama have said this is Bid’ah.
searchwords: Rajab Rajjab