Anwar al-Agha said Tuesday that Egypt agreed to allow the body to be returned through its border with Gaza.
Israel's Defense Minister Avigdor Lieberman had appealed to Egypt to refuse the Palestinian request. The body is expected to arrive in Gaza on Thursday.
Fadi Albatsh, an electrical engineering lecturer at a Malaysian university, was gunned down by two men on a motorcycle as he was on his way to a mosque early Saturday.
Hamas, a militant terror group sworn to Israel's destruction, described Albatsh as a "commander" in its military wing and accused Israel of assassinating him. Israel has not commented.
On Tuesday, Hezbollah Secretary-General Hassan Nasrallah also blamed Israel for the mysterious assassination, slamming it as a “Zionist crime.”
"We must condemn this Israeli assassination of a Palestinian-Arab scientist and the martyr Fadi al-Batsh,” Nasrallah said during a speech delivered at an event organized by the Hezbollah terror group ahead of the Lebanese parliamentary elections next month.