HARRY
It’s just people looking okay? People look. And they’re looking at me, not you.
The OVER-ATTENTIVE WIZARD proffers something for HARRY to sign – he signs it.

ALBUS
At Harry Potter and his disappointing son.

HARRY
What does that mean?

ALBUS
At Harry Potter and his Slytherin son.

JAMES rushes past them carrying his bag.

JAMES
Slythering Slytherin, stop with your dithering, time to get on to the train.

HARRY
Unnecessary, James.

Harry Potter and the Cursed Child - Chapter 1 :
See this quote in the Pensive -