Is a person fast is valid, if he makes intention to fast( nafl ) just before the beginning of fajr?

Question:

As salaam mu alaikum

I would like clarification, is a person fast is valid, if he makes intention to fast( nafl ) just before the beginning of fajr?

Answer:

Wa Alaikum as Salaam,

Yes, in this case his fast will be valid.

And Allah knows best,
Mufti Waseem Khan

2/1/2013