Jami at-Tirmidhi 721
Jami at-Tirmidhi · Book 8: The Book on Fasting · What Has Been Related About The Fasting Person Eating Or Drinking Forgetfully
Abu Hurairah narrated that the Messenger of Allah said:
حَدَّثَنَا أَبُو سَعِيدٍ الأَشَجُّ ، حَدَّثَنَا أَبُو خَالِدٍ الأَحْمَرُ ، عَنْ حَجَّاجِ بْنِ أَرْطَاةَ ، عَنْ قَتَادَةَ ، عَنِ ابْنِ سِيرِينَ ، عَنْ أَبِي هُرَيْرَةَ ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ أَكَلَ أَوْ شَرِبَ نَاسِيًا فَلاَ يُفْطِرْ فَإِنَّمَا هُوَ رِزْقٌ رَزَقَهُ اللَّهُ " .
"Whoever eats or drinks forgetfully, then he has not broken (the fast), for it was only a provision that Allah provided for him."
Grade: Sahih (Darussalam)