Raising the voice when saying Tasbeeh on Friday
Question

                Is saying Tasbeeh in a loud voice on Friday for an hour or more before Jumu’ah prayers Sunnah or bid’ah?
Praise be to Allah. 
          Undoubtedly this action is bid’ah, because it has not 
          been transmitted to us that the Prophet 
          
          (peace and blessings of Allaah be upon him) or his companions did that, 
          and all goodness is to be found in following them. But if a person says 
          Tasbeeh to himself, there is nothing wrong with that, indeed it brings 
          much good and a great reward, because it was narrated in a saheeh report 
          that the Prophet 
          
          (peace and blessings of Allaah be upon him) said: “The most beloved 
          of words to Allaah are four: Subhaan Allaah (Glory be to Allaah), 
          al-hamdu Lillaah (praise be to Allaah). Laa ilaaha ill-Allaah 
          (there is no god except Allaah) and Allaahu akbar (Allaah is 
          Most Great).” (Narrated by Muslim, al-Adaab, 2137) 
 
          And he 
          
          (peace and blessings of Allaah be upon him) said: “Two words which are 
          light on the tongue but which are dear to the Most Merciful and will 
          weigh heavily in the balance: Subhaan Allaah wa bi hamdih, subhaan 
          Allaah il-‘Azeem (Glory and praise be to Allaah; Glory be to Allaah 
          the Almighty).” (Narrated by al-Bukhaari, al-Aymaan wa’l-Nudhoor, 
          6682; Muslim, al-Dhikr wa’l-Du’a’ wa’l-Tawbah (Remembering Allaah, supplication 
          and repentance, 2694).