Albert Barnes Commentary Ezra 8:17

"And I sent them forth unto Iddo the chief at the place Casiphia; and I told them what they should say unto Iddo, [and] his brethren the Nethinim, at the place Casiphia, that they should bring unto us ministers for the house of our God." — Ezra 8:17 (ASV)

Casiphia - Its situation is wholly unknown; but it cannot have been far from Ahava.