"There is no basis to Netanyahu's claims about the movement backtracking from terms in the ceasefire agreement," senior Hamas leader Sami Abu Zuhri told AFP.

In addition, Izzat Al-Rishq, a member of the Hamas political bureau and the head of the group's Arab and Islamic Relations Office, asserted that the Palestinian group “is committed to the ceasefire agreement, which the mediators announced.”

Israeli Prime Minister Benjamin Netanyahu’s office said Thursday that his cabinet will not meet to approve the ceasefire deal in the Gaza Strip until Hamas backs down from what it claimed is a “last-minute crisis.”

“Hamas reneges on parts of the agreement reached with the mediators and Israel in an effort to extort last-minute concessions. The Israeli cabinet will not convene until the mediators notify Israel that Hamas has accepted all elements of the agreement,” Netanyahu’s office said without elaborating.

Netanyahu’s office had earlier accused Hamas of backtracking on an earlier understanding that he said would give Israel a veto over which prisoners convicted of murder would be released in exchange for captives.

The Times of Israel reported that Mossad chief David Barnea and the Israeli negotiating team are still in Doha, finalizing the details of the ceasefire deal.

“When the delegation returns, the security cabinet will convene,” it added. 

Reuters quoted an Israeli official saying that the acceptance of the ceasefire agreement "will only become official with the approval of the security cabinet and the government."

Netanyahu has faced great domestic pressure to bring home the scores of captives, but his far-right coalition partners have threatened to bring down his government if he makes too many concessions.

He has enough support from the opposition to approve an agreement, but doing so would weaken his coalition and increase the likelihood of early elections.

Sources in the Israeli government told Maariv newspaper that Netanyahu cannot backtrack on the deal.

They explained that his options are to secure a majority that supports the deal or go for elections.

Meanwhile, the Israeli Broadcasting Authority said the delay in Netanyahu's office statement regarding the deal is due to the crisis with Finance Minister Bezalel Smotrich, who refuses the deal, and efforts to maintain government stability.

Mediators Egypt, Qatar, and the US announced on Wednesday that Israel and Hamas had agreed to a ceasefire in Gaza starting on Sunday, along with a captive and prisoner exchange after more than 15 months of war.

Protests were staged on Thursday morning in Israeli cities opposing the deal, with the families of Israeli soldiers killed during the conflict placing mock coffins draped in Israeli flags in the street.

With 98 Israeli captives remaining in Gaza, phase one of the deal entails the release of 33 of them. Those include all women, children, and men over 50 in exchange for releasing one thousand Palestinian prisoners.