Answered by Sayyidi Habib Umar bin Hafiz (may Allah protect him and benefit us by him)
Do we need to request permission before reciting various prayers upon the Prophet ﷺ, such as those contained in the book Dala’il al-Khayrat?
You have general permission to read any prayer upon the Prophet, ﷺ so there is no need to request permission. The main thing is that you recite it with love, longing and veneration witnessing that the Prophet ﷺ is the means for all the good that Allah gives His servants.