Who said "Old Barney is coming back out to play."?

This quote is attributed to Barney Stinson.

Old Barney is coming back out to play. - Barney Stinson

"Old Barney is coming back out to play."

Barney Stinson Humor

"Legendary!"

"When I get sad, I stop being sad and be awesome instead."

"Have you met Ted?"

"Suit up!"

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."