[6] At the end of the 8th century, whilst at the court of the Abbasid Caliphate, al-Fazārī mentioned Ghana, "the land of gold.
"[7] Along with Yaʿqūb ibn Ṭāriq, al-Fazārī helped translate the 7th century Indian astronomical text by Brahmagupta, the Brāhmasphuṭasiddhānta, into Arabic as 'Zij as-SindhindAz-Zīj ‛alā Sinī al-‛Arab,[8] or the Sindhind.
This translation was possibly the vehicle by means of which the mathematical methods of Indian astronomers were transmitted to Islam.
ordered al-Fazārī to translate the Indian astronomical text, The Sindhind, along with Yaʿqūb ibn Ṭāriq, which was completed in Baghdad about 750, and entitled Az-Zīj ‛alā Sinī al-‛Arab.
This translation was possibly the vehicle by means of which the Hindu numeral system (the modern number notation) was transmitted from India to Iran.