It is one of the six books of the hadith collected by Imam Al -Tirmidhi, which is considered by the scholars of the Sunnis and the group the fifth books of the six hadith. Sheikh Al -Albani divided it into Sahih Al -Tirmidhi and weak Al -Tirmidhi. Al -Tirmidhi passed away in seeking knowledge to Khurasan, Iraq and the Two Holy Mosques. He heard from many elders. Among the most famous: Bukhari and Muslim. The scholars unanimously agreed on his justice and confidence. Imam Al -Tirmidhi has several categories, the most famous of which are: the book 'The Mosque', including: The book "Al -Shamal Al -Muhammadiyah", and the book "Illuminations".