30. Fasting

٣٠۔ كتاب الصوم

30.26 If a person observing Saum ate or drank forgetfully

٣٠۔٢٦ باب الصَّائِمِ إِذَا أَكَلَ أَوْ شَرِبَ نَاسِيًا

[Machine] And Ata said, "If he sprinkles water and it enters his throat, there is no harm, if he does not intend it." And Al-Hasan said, "If a fly enters his throat, there is nothing against him." And Al-Hasan and Mujahid said, "If he has sexual intercourse forgetfully, there is nothing against him."

وَقَالَ عَطَاءٌ إِنِ اسْتَنْثَرَ، فَدَخَلَ الْمَاءُ فِي حَلْقِهِ، لاَ بَأْسَ، إِنْ لَمْ يَمْلِكْ. وَقَالَ الْحَسَنُ إِنْ دَخَلَ حَلْقَهُ الذُّبَابُ فَلاَ شَيْءَ عَلَيْهِ. وَقَالَ الْحَسَنُ وَمُجَاهِدٌ إِنْ جَامَعَ نَاسِيًا فَلاَ شَيْءَ عَلَيْهِ.

Accidentally eating or drinking does not break one's fast

bukhari:1933ʿAbdān > Yazīd b. Zurayʿ > Hishām > Ibn Sīrīn > Abū Hurayrah

The Prophet ﷺ said, "If somebody eats or drinks forgetfully then he should complete his fast, for what he has eaten or drunk, has been given to him by Allah."  

البخاري:١٩٣٣حَدَّثَنَا عَبْدَانُ أَخْبَرَنَا يَزِيدُ بْنُ زُرَيْعٍ حَدَّثَنَا هِشَامٌ حَدَّثَنَا ابْنُ سِيرِينَ عَنْ أَبِي هُرَيْرَةَ ؓ

عَنِ النَّبِيِّ ﷺ قَالَ إِذَا نَسِيَ فَأَكَلَ وَشَرِبَ فَلْيُتِمَّ صَوْمَهُ فَإِنَّمَا أَطْعَمَهُ اللَّهُ وَسَقَاهُ