The Prophet ﷺ said, "If someone forgets and eats or drinks, let him complete his fast, for it was only Allah who fed him and gave him drink."
حدثنا عبدان أخبرنا يزيد بن زريع حدثنا هشام حدثنا ابن سيرين
عن النبي ﷺ قال إذا نسي فأكل وشرب فليتم صومه فإنما أطعمه الله وسقاه