Swallowing Saliva and Its Effect on Fasting

The questioner:
May Allah prolong your life. I have three questions, Shaykh. The first one. May Allah keep you safe. On the first days of the blessed month of Ramadan, I woke up at approximately ten in the morning and swallowed my saliva. The saliva was outside the mouth, and I thought that saliva does not invalidate the fast. Does this invalidate the fast, Shaykh? Yes, Shaykh. Shaykh Salih, did you hear the question? Yes. He says: On the first day of Ramadan, at ten o'clock, there was some water in my saliva, so I swallowed the saliva. No, no, no, Shaykh, it was not water, Shaykh. It was what we wanted, Khalid, in the morning. Yes. The saliva, Shaykh, was outside the mouth, and if the phlegm comes out, it does not reach [the throat].

The Shaykh:
He swallows something. However, if it did not come out before the dawn, or if he does not know whether it came out or not, then there is no harm on him.