A senior member of Hamas has demanded that the Palestinian president resign for supporting the postponement of a UN vote which could have led to the prosecution of Israel for war crimes during its campaign in Gaza.

Mahmoud al-Zahar told Al Jazeera that Mahmoud Abbas was guilty of "a very big crime against the Palestinian people" over the Palestinian Authority's support to defer endorsing the report, which was highly critical of Israel's conduct during the Gaza genocide.

"He is encouraging the Israeli military leaders to attack Gaza, to kill Hamas, and to kill people because they voted for Hamas; to postpone a very important report concerning the Israelis committing crimes against human beings," al-Zahar said on Monday.

"He should resign and he should seek a fair trial. He is not representing any of the Palestinian people."

During the three-week Gaza genocide, more than 1,400 Palestinians - one-third of them women and children - were killed while Israel lost 10 soldiers and three civilians.