Q: What is the ruling for the one who eats forgetfully whilst fasting?
A: Shaykh Ahmed Al-Najmi rahimahullaah said:
Whoever eats or drinks forgetfully whilst fasting then it doesn’t break his fast due to the hadeeth, “whoever eats or drinks forgetfully, then let them complete their fast for indeed it is Allaah who has fed him and quenched his thirst.
(Fataawa no. 269 Shaykh Ahmed Al-Najmi rahimahullaah)