Tarawih
Tarawih (تراويح) also spelled Taraweeh, are Bid'ah prayers which Muslims read at night in the month of Ramadan. The details of how the Tarawih are to be said is different between the different branches of Islam. Tarawih prayers are made up of a number of prayer phrases and actions, rakahs. Hanafis and Shafi'i say there are 20 rakahs, some Hanabalis say it is only eight, while others say 20. Malikis say there are 36, and the Ahl al-Hadeeth say it is 8.