What is the ruling on fasting when swallowing saliva or phlegm?
There is no harm in a fasting person swallowing their saliva, and this is a matter agreed upon by scholars, because it is difficult to guard against it. It falls under the ruling of things that cannot be guarded against, such as road dust and sifting flour.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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