Nasa (Nisa)

Nasa (Nisa), near modern Ashgabat in present-day Turkmenistan in the historic region of Khurasan, was a town at the foot of the Kopet Dag mountains (and earlier a Parthian royal site). The hadith master al-Nasa'i (d. 915), compiler of the Sunan, one of the six canonical Sunni collections, took his nisba from Nasa, where he was born.