His hiding place was revealed by a certain ungrateful beggar who had brought him food. The saint used to feed him and help him with money, but the man betrayed him for two pieces of gold. Sabinus was seized with six other Christians, and after torture they were all drowned in the Nile in 287.
From here & here.
The Orthodox Church of Alexandria & the Patriarchate of Alexandria
The holy anarchists... in the Egyptian Desert
Orthodox Egypt (tag)