Question
Why does someone who ate while thinking that dawn had not yet been called to prayer have to make up the fast? Isn't it considered that they made a mistake, and the noble hadith says: 'Mistakes, forgetfulness, and what they are forced to do have been lifted from my nation'?
Answer
I say, and with God's help: The hadith speaks about sin in the judgment of the Hereafter, and does not discuss the validity or invalidity of fasting, and God knows best.