The Brazilian forward opened the scoring just three minutes into the match, showcasing his individual brilliance before calmly finishing to put Barcelona ahead. Raphinha skipped past two defenders with an impressive piece of skill before finding the back of the net.
The goal extended his extraordinary run in front of goal. The former Leeds United winger has now scored seven times in his last five matches and has found the net in every game he has played this season.
Barcelona quickly strengthened their advantage through Karim Adeyemi. The summer signing from Borussia Dortmund collected the ball around 20 yards from goal before curling a superb effort into the top-right corner. Adeyemi celebrated his second Barcelona goal with his trademark back-flip.
Feyenoord, managed by former Barcelona player Giovanni van Bronckhorst, struggled to contain the hosts. Van Bronckhorst was part of the Barcelona team that won the Champions League during the 2005-06 season.
The Dutch visitors felt they should have been awarded a penalty in the 20th minute when Anis Hadj Moussa went down inside the Barcelona box, but their appeals were rejected.
Raphinha struck again in the 57th minute, completing a well-timed run before firing the ball across the goalkeeper. The goal was his eighth of the campaign and marked the third time in his last five appearances that he had scored twice in a match.
Barcelona continued their attacking display and added a fourth goal in the 77th minute. Lamine Yamal found the net directly from a free-kick to further underline the hosts' dominance.
Despite their impressive attacking performance, Barcelona once again failed to keep a clean sheet in the Champions League. Substitute Sem Steijn pulled one back for Feyenoord in the 82nd minute, denying the Catalan side a shutout.
There was still time for Barcelona to add another goal. Gabriel Jesus, who joined the club from Arsenal at the start of the month, scored his first goal for his new team with a header late in the match.
The victory means Barcelona have now scored 22 goals across their last five games, highlighting the remarkable form of their attacking players as they continue their Champions League campaign.
