Career
Ja"abari was head of the Jericho Conference in Jericho which supported the unification of the West Bank and Jordan. In the 1950s, he held a seat in the upper chamber of the Jordanian government. After Israel occupied the West Bank from Jordan in the 1967 Six-Day War, he proposed that Israel only remain in power for five years after which the Palestinians would reserve the right of self-determination.
Apparently, it had been agreed with Israel that he would serve as the Prime Minister of a new Palestinian state.
He prominently opposed the violent nature of the fedayeen. Ja"abari died in 1980.
He is related to Sulaiman Ja"abari, the former Grand Mufti of Jerusalem.