Swallowing Food Residue While Fasting

Question

A person felt food residue between their teeth while fasting and attempted to remove it without the intention of swallowing it. They moved the residue with their tongue and later could not find it in their mouth, leading to the possibility that it was swallowed unintentionally. What is the ruling on their fast in this case?

Answer 1

Peace be upon you.

According to Grand Ayatollah Khamenei and Grand Ayatollah Sistani:

If it was not done intentionally, as mentioned in the question, then there is nothing upon you, and your fast is valid.

May you be successful in all good.

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Source:

Grand Ayatollah Khamenei: Message on Prayer and Fasting, Fasting, Obligations of Fasting, Avoiding Invalidators of Fasting, Eating and Drinking + Cases Requiring Qadha and Kaffarah

Grand Ayatollah Sistani: Minhaj al-Salihin, Vol. 1, Invalidators of Fasting + Kaffarah of Fasting