Re: The cities and places they lived
yes its combination of both:
Khorasan in its proper sense comprised principally the cities of Mashhad, Nishapur, Sabzevar and Kashmar (now in Iran), Balkh and Herat (now in Afghanistan), Merv, Nisa and Abiward (now in Turkmenistan), Samarqand and Bukhara (now in Uzbekistan). Some believe that at certain times Khorasan covered a wider area, which included parts of Transoxiana, Soghdiana, Sistan, and extended to the boundaries of the Indian subcontinent.
many Sufi saints belongs to these cities. Balakhi, Sabzwari, mashadi, Bukhari are part of names of many suifs of sub-continenet