the book cited description of the Persian sea from the book (Sourat Ard)Face of the Earth page 42 Written by Ibn Hawql: ” … after Arabs lands should be mentioned The Sea of Persia because Persian sea includes most of Arabs borders, the Arab peninsula are connected to this sea ,the Persian sea connected to many countries of Islam. this sea start from the Qulzam(Red sea ) it ends to Eble (Basra bay), then It crosses Siraf (Bushehr) then extends to the Hormuz and Macran and the coasts of Multan, which is the coasts of Sindh (Pakistan) which the boundaries of the countries of Islam is ended then the Persian sea continues to the coasts of India finally in east it connect to the sea of China”. 