The 24-year-old lives in the Beit Hanoun district of the Gaza Strip by the Israeli border which suffered intensive bombardment during the 2014 conflict between the Israeli army and Palestinian militants.
The family home was destroyed and the surrounding plots heavily churned up, leaving extensive craters in the ground.
The flash-flooding earlier this week led him to one particular spot, where, on removing a large stone, he found a staircase leading four metres down into an ancient tomb.
"I lifted the stone and a stale smell came out."
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Gaza-based archaeologist Ayman Hassouna said the finds suggested the grave dated back to the Roman era, 2,000 years ago.
"The burial and excavation methods in this tomb date it back to the Roman period but it may have continued in use into the early Byzantine period (5th to 7th centuries AD)," he said.
"Typically, these were family tombs, or sometimes larger tomb complexes could be divided up among families," she told AFP.
Gaza was a prosperous port in the Roman and early Byzantine periods and boasted many ancient monuments that have since been lost.
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