The Meccan Revelations: Page 730 from Volume One

Their disagreement: Is there a condition for the one upon whom a ransom is required to remove harm ?

That he be intentional, or is he forgetful? And the intentional person is the same. Some people said they are the same, and others said there is no ransom on the forgetful person. This is what I say, and the forgetful person here is the one who forgot his ihram, and both of them are intentional about causing harm. So if it is obligatory on the one in need. And he is the one who intended to remove it to remove the harm while remembering the ihram, so it is obligatory for the forgetful person because he is commanded to do the dhikr that is specific to the ihram, so if he forgets the ihram, then he does not bring the dhikr that was for the ihram, so he combined to remove the harm and forget the ihram, so it was.