JERUSALEM (Reuters) -Israeli Prime Minister Benjamin Netanyahu was discharged from hospital on Monday ahead of the first ratification vote in a controversial judicial overhaul sought by his religious-nationalist coalition.

A Reuters witness saw Netanyahu's convoy depart Sheba Medical Center near Tel Aviv, which admitted him late on Saturday and fitted him with a pacemaker after doctors said a heart monitor had detected "temporary arrhythmia".

Netanyahu's office and Sheba said he had been discharged.

On Monday, the Knesset is due to hold final readings of a bill amending a law enabling the Supreme Court to void decisions made by the government and ministers it deems "unreasonable".

If passed - a likelihood given Netanyahu's parliamentary majority - the bill would be the first of a package of reforms the prime minister is pursuing in the name of balancing out branches of government, but which his critics see as a curbing judicial independence.

(Reporting by Maayan Lubell and Rami Amichay; Editing by Dan Williams and Miral Fahmy)