The precious relationship

The precious relationship is a book by Abu Ali Ahmed bin Omar bin Rasta, written in the year 290 AH in Asbhan. It is a book that can be considered an encyclopedia in geography and others. Al -Bakri relied on him a lot and translated into Russian, German and French, the book is similar to the encyclopedia, including seven volumes in the calendar of countries, and he searches in the wonders of the heavens and the center of the earth from them and the size of the earth, and describes the seas, rivers and seven regions, especially Iran and the following, and in it a chapter in the first who created things Other than them, and another in the similar conditions in various conditions and the participants in one nickname and the famous people with disabilities. He started the separation of regional geography by describing Mecca and Medina, but it was not limited to describing Islamic countries only, but also describing other countries, and there are those who counted the book "a small knowledge circle in historical and geographical knowledge."