Hamas spokesman Musheer al Masri told journalists in Gaza that Abbas' declaration represents only the Palestinian National Authority's position.
"It does not necessarily represent the position of other factions including Hamas," said Masri.
"Our position is still
clear that there is no ceasefire offered to the Zionist enemy without a real price. We will keep calmness only if Israel makes commitments to release all Palestinian prisoners," he said.
Hamas, which wants all the 8,000 Palestinian prisoners in Israeli jails to be released, rejected the Israeli offer to release only 900 Palestinian prisoners in two stages, 500 freed immediately after the summit and 400 over a period of three months.
"We really feel disappointed that this summit had not achieved what our people were looking forward to being achieved," said Masri.
