How do we reconcile the Prophet's (peace and blessings be upon him) prohibition of swearing by fathers with the fact that he swore, saying, "May he prosper, by his father, if he is truthful"?

The questioner : ... .

The Shaykh : He says, "How do we reconcile the prohibition of the Messenger (peace and blessings be upon him) against swearing by fathers, with the fact that he (peace and blessings be upon him) swore an oath, as he said: in the story of the man who asked about Islam, and he said, 'By Allah, I will not add to this or subtract from it,' and the Messenger (peace and blessings be upon him) said: The scholars have differed in their answers regarding this. Some of them said that there is a transcription error in this, and that the original text is 'Aflaha wa Allah' (He has succeeded, by Allah), but because they did not dot the letters or place vowel marks on them in the beginning, 'Aflaha wa Allah' became 'Aflaha wa Abi' (He has succeeded by his father) if he is truthful, which is close to 'Abi' (his father). There is no doubt that this is an error, because the hadiths were transmitted by oral narration and by written transmission, and those who transmitted it said 'Aflaha' and 'Abi'. Second, some of them said: This was before the prohibition of swearing by fathers, and this opinion requires something. What is it? The date. And some of the scholars said: This is something that slips off the tongue without intention, like saying, 'May your mother be bereaved of you, O Mu'adh.' These are three opinions. And some of the scholars said: It is impossible for the Prophet (peace and blessings be upon him) to have in his heart the same level of reverence for the thing by which he swears as others do, and on this basis, he is an exception.