Al -Jawhara in the proportions of the Prophet and his ten companions

A book on the genealogy of the Arab tribes, written by Muhammad bin Abi Bakr Al -Bari, who lived in the seventh century AH between the years (605 AH - 665 AH), which was emptied of the writing of the book in 644 AH, and the book is located in two parts and they are located in more than a thousand pages.