TIRMIDHI 721:
from Abū Hurayrah —
"Whoever eats or drinks forgetfully, then he has not broken (the fast), for it was only a provision that Allah provided for him."
الترمذي ٧٢١:
عن ابو هريره —
قَالَ رَسُولُ اللَّهِ ﷺ مَنْ أَكَلَ أَوْ شَرِبَ نَاسِيًا فَلاَ يُفْطِرْ فَإِنَّمَا هُوَ رِزْقٌ رَزَقَهُ اللَّهُ