What is the ruling on one who travels by plane and enters the state of ihram for 'Umrah without wearing the ihram garments?

Question:
May Allah reward you, Honorable Shaykh. This questioner says: A man traveled by plane intending to perform 'Umrah, and he forgot his ihram garments. When he passed the miqat, he made the intention while wearing the clothes he had on. Is his action valid? And what are the consequences of it?

Answer:
Making the intention, yes, the intention is valid. As for the garments, if he is unable to obtain ihram garments, he should keep only his trousers, keep the trousers, and throw something over his shoulders to cover them. He should not keep the stitched garment; the stitched garment is not kept. He keeps only the trousers. It is permitted for him to keep the trousers until he gets off the plane and changes into the ihram garments. Yes. And as long as he did this while ignorant and did not remove the stitched garment while ignorant, he owes nothing, if Allah wills. Yes. But for the future, if a person encounters this and wants to enter the state of ihram, he should remove the garments and keep only the trousers, and throw something over his back and shoulders, whether his shemagh or whatever he has with him. Yes. Or even his garment, if he removes his garment and throws it over his shoulders, there is nothing wrong with that. Yes.