Who said "Happiness multiplies when it's shared with a friend."?

This quote is attributed to Abu.

Happiness multiplies when it's shared with a friend. - Abu

"Happiness multiplies when it's shared with a friend."

Abu Happiness

"Ooh ooh! Ooh ooh!"

"Abu wants the shiny thing!"

"No, no, no - that one's mine!"

"Monkey see, monkey do!"

"Babalú!"

"My greatest joy is making people smile."

"Laughter and love make a home."

"The best things in life are free."