Question to followers of 'hadith and sunna'

[mquran]

Salaamun alaikum,

To anyone who follows 'hadith and sunna of Muhammad', my question is

were any of the hadith compilers (the big 6, bukhari, muslim ibn hajjaj, tirmidhi, nisai, abu dawud, ibn majah) PERFECT, i.e. FLAWLESS in thier collection?

that's all.

thanks.