He surpasses the record of Colombia keeper Faryd Mondragon, who was 43 years and 3 days old in his final appearance at the 2014 World Cup.
Egypt goalkeeper Essam El Hadary, the oldest in World Cup history, deflects and saves a penalty shot from Saudi Arabia.
"I just want to say that Egypt reached the World Cup after 28 years, some players here do not have the required experience".
Egypt have never won a game at the World Cup but they could still be in line for a maiden victory at the Volgograd Arena in Volgograd if they can defeat Saudi Arabia.
Jubilant England fans now expected to rush to Russian Federation
Captain Harry Kane grabbed a hat-trick as England scored six goals in a World Cup finals game for the first time in their history.
Egypt, though, went ahead with their first effort on goal as Mohamed Salah edged ahead of the defence to control brilliantly before lobbing goalkeeper Yasser Al Mosailem following a pinpoint pass by Abdallah El Said.
The Green Falcons were, however, awarded another spot-kick in first-half injury-time when Al-Muwallad was adjudged to have been dragged down inside the area by Ali Gabr and, upon consultation with the Video Assistant Referee, the award stood.
He didn't get on the scoresheet as Egypt were beaten 2-1 by Saudi Arabia but he did save a penalty in the first half with his country 1-0 up. A minute later, he parried away a goal-bound header from Muhannad Asiri.
El-Hadary got the start as Egypt and Saudi Arabia played for bragging rights in Group A. With both Russian Federation and Uruguay sitting at six points, Egypt and Saudi Arabia were eliminated after their second games of the tournament.
Edinson Cavani rounded off a third successive victory for the South Americans, who finish the first phase with a 100% record and are yet to concede a goal.