On Friday it is praise worthy to,
1. Recite sura al Kahaf (chapter 18 of the Holy Quran)
2. Perform salat-ut tasbih
3. Recite salutation (durood) on Prophet (Allah’s blessing and peace be upon him) excessively
ASHRAFIYA
Teachings of Hakim al-Umma Mawlana Ashraf 'Ali Thanawi & his spiritual successors, particularly 'Arifbillah Dr 'Abdul Hayy 'Arifi (may Allah bless them) and Sayyidi Mawlana Mufti Mohammad Taqi Usmani (may Allah preserve him) regarding Tasawwuf
What exactly is salat ul-tasbih?
Jazak Allahu khayr.
Respected brother, you can find information about salat ut tasbih in fiqh manual. Online I found this useful information at ask imam.
Jazak Allahu khayr for the link.