Definition of genealogy and mention for those with reckoning

This book is not an ordinary book, but rather is part of the legacy of the Baqi neighborhood to what God wills, as it talks about genealogy and we have given us the importance of the Messenger, may God bless him and grant him peace, and Omar bin Al -Khattab. This book is first attributed to the master of creation, the whole of the Messenger, may God bless him and grant him peace, Muhammad bin Abdullah, his children, and his cousins, then complete the genealogy of the Arabs from tribes, stomachs, thighs, and others.