It is in the district of Hasinli in Kocasinan district, one of the central districts of Kayseri. According to what he wrote in his foundation, it is written that Ürgüplü Derviş Mehmed Ağan built the Hasinli Mosque together with a primary school, a madrasah and a fountain in 1126 (AD.1712).
The mosque was repaired in H.1201 (in AD.1786). A lady named Ak Hatun, a descendant of Derviş Mehmed Ağa, had the mosque repaired.
The primary school and madrasah mentioned in the foundation were demolished and destroyed. The Hasinli fountain opposite the mosque is still standing.

When I saw it, it was in a terrain that seemed to be prepared for restucturing, in other words, ruined. I hope to inspect the results later.