Assalamu Alaikum.
When I was taking my suhur, I rushed over to drink water when I heard the Muazzin say Allahu Akbar. Is my fast valid?
Because I heard a fatwah somewhere that it was said if a person is taking his suhur and suddenly he hears the azaan he should not stop but rather continue with his suhur without rushing and finish.
Please I wanted to confirm the state of my fast is it valid? Or do I need to make it up?
BaarakAllahu fiikum.

All perfect praise be to Allah, The Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad is His slave and Messenger.

It appears to us that your fasting is valid, and that you do not have to make it up. In this time, in the cities where lights are spread, the Athaan is based on the calendar, because it is not possible to observe the actual time of dawn. Therefore, the break of dawn is not certain based on the calendar only. So if someone ate or drank (after hearing the Athaan), then his fasting is valid because he was not certain that dawn cracked. However, to be on the safe side, it is better that one abstains from whatever breaks the fast upon hearing the Athaan.

Allah Knows best.