By Al-Hajj 'Umar ibn Abd Allah Sinawani, this book is on the work of al-Qasim ibn Firruh al-Shatibi (538/1144-590/1194) in his famous poem 'Hirz al-Amani wa-Wajh al-Tahani' (also known as the Shatibiyyah), which is a explanation of the language and style of the Holy Qur'an - A classical Arabic language study.