Barca recorded a 16th consecutive victory over Atletico Madrid
Lionel Messi also scored a hat-trick, which allowed him to take the lead in the Pichichi race, overtaking Cristiano Ronaldo, but the Argentine magician downplayed the significance of this.
"I am not worried about being top scorer. What worries me is that the team stays on course and maintains the gap for our fans," said Messi.
Messi also spoke of the record beaten by his team, and reminded fans that it is too early to think of the Copa Del Rey final, which will be contested in April between Barcelona and Real Madrid.
"We are proud to beat this record as it had lasted a long time, and was very hard to beat.
"We must now think of La Liga and the Champions League. The Cup final will come."