The Moroccan international, who started his professional journey with Los Blancos, used the moment to reflect on his departure from the Spanish giants.
Speaking after the match, Hakimi appeared to take a thinly veiled swipe at Madrid's decision to let him go.
"How did Real Madrid let someone like me leave? It wasn't my decision," he told Madrid Zone as quoted by Sportbible.com.
Hakimi's comments came after a dominant display by PSG, who breezed past Madrid thanks to goals from Fabian Ruiz, Ousmane Dembele, and Goncalo Ramos. The result sees the Ligue 1 champions set up a blockbuster final against Chelsea on Sunday.
The full-back, now 26, came through the youth ranks at Real Madrid and made 17 first-team appearances during the 2017/18 season.
After a successful loan stint at Borussia Dortmund, he was sold to Inter Milan before joining PSG in 2021 for a reported 60 million euros.
Since then, Hakimi has blossomed into one of the world's top full-backs, forming a lethal partnership on the flanks with Nuno Mendes. In 174 appearances for PSG, he has scored 25 goals and won multiple domestic titles.
The current campaign has been particularly fruitful for the Parisian side, with the Ligue 1 and Champions League already in the bag. A Club World Cup title would cap off a dream treble.
All eyes now turn to Sunday's final against Chelsea in what could be PSG's crowning moment.