ANSWER:

Your fast is valid. 

It is sufficient to make an intention at the beginning of the month for fasting throughout the month of ramadan. Making the intention verbally is an innovation.

Sheikh now as i’m writing this..Alhumdulillah i’m fasting..but May Allah (swt) forgive..i overslept during my suhoor time & missed it..but asap i got up, fajr adhaan had just been called a couple of minutes ago..so Alhumdulillah i made my wudu..prayed both my sunnah & fard fajr sala’ah..& made my niyaah to fast today..& before sleeping d day before i hd a niyaah to fast..to that is my fast valid?

Fasting |