Ronaldo scored a hat-trick as the Saudi Arabian club beat Al-Kholood 5-3 on Thursday.
The 41-year-old saw a goal chalked off for offside in the first half, before he went on to score three times after the break.
Former Chelsea forward Joao Felix burst into the area to tee up Ronaldo for a tap-in and collect his third assist of the game.
And Ronaldo then climbed brilliantly to thump in a header to make it 4-2 from yet another Felix assist.
There was time for a fifth and a hat-trick for Ronaldo, when the former Real Madrid man was on hand to convert a Mane pass inside the area, before Domingues pulled one back with a 94th-minute penalty.
