The aim of the study is to identify the Arabic grammar based on Nahu. Formerly,
Basrah scholars focused on their study to determine Nahu and Arabic grammar. Although they
agreed with Kufah group that hadits and word sayings of Arabic people can become references
to in determining syntactical structure (grammar) of Arabic language. Thus, they provide
strong requirement to those references. Meanwhile the scholars made qiyas as ijma` as Nahu
regulations.
Keywords: Ushul Nahu, Basrah group, characteristics in Manhaj Nahu, Basrah
scholars