sentences:  Its notable scholars included Hamzah Fansuri, Syamsuddin of Pasai, Abdurrauf of Singkil, and the Indian Nuruddin ar-Raniri.Aceh gained wealth from its export of pepper, nutmeg, cloves, betel nuts, and, once it conquered Pahang in 1617, tin.Low-interest rates and the use of gold currency strengthened its economy.