SCORPIUS
All I ever wanted to do was go to Hogwarts and have a mate to get up to mayhem with. Just like Harry Potter. And I got his son. How crazily fortunate is that.

ALBUS
But I’m nothing like my dad.

SCORPIUS
You’re better. You’re my best friend, Albus. And this is mayhem to the nth degree. Which is great, thumbs-up great, it’s just – I have got to say – I don’t mind admitting – I am a tiny bit – just a tiny bit scared.
br>ALBUS looks at SCORPIUS and smiles.

ALBUS
You’re my best friend too. And don’t worry – I have a good feeling about this.

Harry Potter and the Cursed Child - Chapter 2 :
See this quote in the Pensive -