The Research's name: one of the most Prominent books in the Genealogy, Al-Zubair bin Bakar Through his Book (Jamharat Nasab Quraysh Wa Akhbàruhà).

The Book (Jamharat Nasab Quraish Wa Akhbaruha) is considered as one of the most important books for the Arabs' parentages because of its documental chain for Quraish (One of the biggest Arabs' tribes) and its parentage. So it is represented as a source of History and Parentage because it had such a perfect accuracy and documentation for the Quraishi's Parentage. So that any researcher cannot write about Quraish's Parentage unless he studies the Chain of Parentage of the book with respect to the fact that its writer was one of the noblest writers of Narration during the third migration decade ( Al-Zubair bin Bakar bin Abdullah bin Musa'ab) . For this reason, his encyclopedic and scientific accuracy became the brightest sides of his Character.