There is little doubt that, other than Ulugh Beg himself, al-Kashi was the leading astronomer and mathematician at Samarkand. Letters which al-Kashi wrote to his father have survived.
Diyan ay kaunti-agam-agam na, maliban sa Ulugh Patawarin kanyang sarili, al-Kashi ay ang nangungunang astronomer at dalubbilang sa Samarkand. Mga titik na al-Kashi wrote sa kanyang ama ay may survived.