Harry Potter and the Prisoner of Azkaban
"Your mum and dad wouldn't want you to get hurt, would they? They'd never want you to go looking or Black!"
"I'll never know what they'd have wanted, because thanks to Black, I've never spoken to them," said Harry shortly. (11.2.27-8)
"And the Acid Pops? Fred gave me one of those when I was seven – it burnt a hole right through my tongue. I remember Mum walloping him with her broomstick." Ron stared broodingly into the Acid Pop box. "Reckon Fred'd take a bit of a Cockroach Cluster if I told him they were peanuts?" (10.3.93)
"Potter trusted Black beyond all his other friends. Nothing changed when they left school. Black was best man when James married Lily. Then they named him godfather to Harry." (10.3.145)