«Milestones of the Prophet's Sunnah». This is a 3 volume work of hadith, by Sheikh Salih al-Shami, who collected the hadiths of Bukhari, Muslim, Abu Dawud, al-Tirmidhi, al_Nasa'i, Ibn Majah, Al-Darimi, Imam Ahmad, Ibn Hibban, Ibn Khuaymah, al-Hakim, al-Bayhaqi, and eliminated duplicates, carefully researche and choose the hadiths with the most information, and only including weak hadiths if they are supported by authentic hadiths, and identifying the weakness. A monumental achievement and important addition to hadith works.