CEVAP:

Another group, the Assassins, was established by Hassan-i Sabbah in 1090 (Öz, 1997: 418). It is argued that they had connection to the Batiniyya cult of the Ismaili sect. The Assassins attracted attention due to the assassinations against the front-benchers of enemy states. Its militants were called as Fedayeen, who
were castrated to eliminate the possibility of failure because they might fall in love, marry, or have children. Fedayeen, who were held captive, would either commit suicide by swallowing the opium that they had carried or get killed by the fellow Fedayeen not to confess the secrets of the group.