Why is the hadith?

Hadith is the Arabic Word for "saying". Hadith is the saying of the prophet Muhammad PBUH & we Muslims are commanded by Allah in the holy Quran to obey the prophet & to follow all His Sunnah.

An authentic Hadith is important because it has a command or a recommendation or a prohibition from the prophet Muhammad PBUH & we must obey Him since obeying Him is actually an obeying of the Creator, Allah.