ثلاث رسائل في علم مصطلح الحديث
A very good collection of three rasaa-il of great scholars of the science of the hadith concerning the conditions of acceptance of the hadiths of the 6 imams (al-Bukhâri, Muslim, abi Dâwud, at-Tirmidhi, an-Nasâi and ibn Mâjah).
- Risala of Imam Abi Dawud, who describes his own book, Sounan Abi Dawud.
- Risala of Imam Muhammad al-Maqdisi in which he explains the conditions of the 6 imams of the hadith.
- Risala of Imam Muhammad al-Hazimi explaining the conditions of the 5 Imams (except ibn Mâjah).