They quoted as evidence for that the hadith narrated by al-Bukhari (1950) and Muslim (1146) from ‘Aishah (may Allah be pleased with her) who said: “I used to have fasts that I still owed from Ramadan, and I could not make them up until Sha’ban, and that was because of the position of the Messenger of Allah (peace and blessings of Allah be upon him) [as a husband].”
Bron: https://islamqa.info/en/answers/26865/do-you-have-to-make-up-missed-fasts-before-next-ramadan
In de islam is slechts hetgeen de Profeet salAllahu 'alayhi wa salam en Allah swt gezegd hebben bindend om op te volgen. De aathaar as-salaf zijn in deze geen hudjah (bewijs) om het verplicht op te leggen!
Dus qala Allah en qala Rasul is bindend, echter qala sahaba zonder dat dit aan Mohamed toegeschreven wordt, is niet bindend.
Wallahu a3lam
Wasalaam