A. 30
B. 40
C. 25
D. 20
Brief Facts about Hadees
There are 6 famous books of Hadees, such as Sahi Bukhari, Sahi Muslim, Ibn-e-Majah, Nisai, Abu Daud, and Tirmizi Sharif. Hadis mentioned in Bukhari and Muslim Sharif is called Mutafiq-ul-Aalay. And Bukhari Sharif is the most authentic book of Hadees.