In general, the Islamic sciences influced each other, undoubtedly. Especially, this mutually interaction happened between hadith and Arabic language in method, terminology, style and practice. The erudites of hadith exposed detailed conditions and rulers in their disciplines. But the Arabic linguists followed the erudites of hadith, together a lot of lacking, and, reproduced their conditions and rulers. According to scholars who researched the matter of evidence in language with hadith, suitable hadiths for evidence are those: Prophees registered hadiths in first century; famous and consecutive hadiths; the hadiths used in the prayers; prophet's short, concise and pithy hadiths; prophet's letters; Prophet's speeches for Arabic tribes with their local languages and the hadiths rumoured from different channels, but their utterances are identicaL.