I've memorised some quotations from various religions for my mock exam, and one of them is something from Hadith from Islam (the quotation is "those who show the most perfect faith are kindest to their families"). When I quote it in the exam, how do I explain that it is from Hadith (I'm not quite sure what hadith is, tbh)? Do I refer to it as "the chapter of the Qu'ran known as Hadith", "the book of Hadith", just "Hadith" or something else altogether?
Thank-you