Which are the 6 most authentic hadith books?

 
1) Sahih Bukhari (collected by Imam Bukhari (d. 870) - 7275 Hadiths) 2) Sahih Muslim (collected by Muslim Ibn al-Hajjaj (d. 875) - included 9200 Hadiths)
3) Sunan Abi Da'ud (collected by Abu Da'ud (d. 888))
4) Sunan al-Tirmidhi (collected by al-Tirmidhi (d. 892))
5) Sunan al-Sughra also known as Sunan an-Nasa'i (collected by al-Nasa'i (d. 915))
6) Sunan Ibn Maja (collected by Ibn Maja (d. 886))

 

The 6 most important books of Hadith amongst Sunnis are (in their correct order of importance):