Since the Prophet's a hadith are the second source of Islamic law, it has always been the topmost concern of the Muslim scholars to collect, assess and preserve them. Great attention was also given to the interpretation of hadith and its bearing on the provisions of Islamic law. Since an acute understanding has been necessary for the legitimate interpretation of hadith, it was also deemed necessary to know the meaning of its words; because the source of the legislation the Prophet - peace be upon him - was profusely endowed with eloquence, and he has been the best and finest speaker of Arabic. This fact has led many scholars throughout history to investigate the meanings of hadith giving the meaning of alien words special care. All this is done to preserve this important legislative source. This study is intended to contribute to the field of hadith sciences, through the collection of extra-strange hadith in the book (Taj al-'Arus) by al-Zabedi, that are in excess to the Majm‘Bihar al-Anwar by Al-Fatni. The study has come up with important results, chief among them are: 1- Al-Zabedi has added forty more roots in his book Taj al-'Arus than al-Fatni in his book Majma‘Bihar al-Anwar. 2- Al-Zabedi has followed in his book the model of Fatni zabadi in his dictionary al- Qamus al-Muhet. 3- Zabedi in his book has added forty-four names which were not mentioned in the former source.