The ruling on one who missed shaving or shortening the hair out of ignorance or forgetfulness

Question:
A man performed 'Umrah and did not shorten or shave the hair on his head, then he returned to his country?

Answer:
He should shorten his hair in his country if he was ignorant or forgetful, and he owes nothing. He should shorten his hair or shave it in his country, and praise be to Allah.
Q: Does he have to pay an expiation?
A: He owes nothing if he was forgetful or ignorant. But if he was knowledgeable and understood, and he was negligent and did not perform it...
Q: Perhaps he was forgetful?
A: The forgetful person owes nothing. But when he remembers, he should take off his clothes, put on the ihram cloth, and shave or shorten his hair, then put his clothes back on.
Q: Does he have to pay an expiation?
A: He owes nothing because he was ignorant or forgetful.