Following supplications has been reported from the Prophetic sayings,

اللَّهُمَّ إِنِّي أَعُوذُ بِعَفْوِكَ مِنْ عِقَابِكَ , وَأَعُوذُ بِرِضَاكَ مِنْ سَخَطِكَ , وَأَعُوذُ بِكَ مِنْكَ , لا أُحْصِي ثَنَاءً عَلَيْكَ أَنْتَ كَمَا أَثْنَيْتَ عَلَى نَفْسِكَ

The following supplication has been recited by the pious elders on this occasion. Surah Yaseen (chapter 36) is recited three times. Each time it is followed by this supplication.

Sayyidi wa sanadi Mufti Mohammad Taqi Usmani (Allah preserve him) wrote the following regarding the worship in the night of 15th of Sha’ban,

“This night is meant for worshiping Allah in solitude.
It is the time to enjoy the direct contact with the Lord of the Universe, and to devote one’s attention to Him and Him alone.
These are the precious hours of the night in which nobody should intervene between one and his Lord, and one should turn to Allah with total concentration, not disturbed or interrupted by any one else.”