To establish the degree acceptability of hadith. By classifying hadith it is ranked into various categories. The hadith becomes most acceptable compared to the other hadiths.
Classification helps guide people what type of hadith to accept or reject. This is importance because they would be no meaning for one to apply a forged arrage hadith yet they are authentic hadiths.
Classification helps hadith guides against infiltration of forged and false hadith into authentic as this would brink great confusion and havoc.
Classification of hadith provides a easy reference and saves time. As one does not waste tome searching for a specific hadith which is also a very cumbersome process.
Classification of hadith is very vital especially for those scholars fight. This is because they must be able to distinguish, compare e.t.c between different hadiths when doing research on various or particular topic.