Can You Fast Without Intention?

Answer: The majority of jurists see that one has to intent to fast the night before every day of Ramadan, and the obligatory fast is not valid without the Niyyah in the night before, as the Prophet (peace be upon him) said: "Whoever has not intent to fast the night before the day he want to fast, his fast is not ...

Can I still fast if I didn't wake up for Sehri?

There is no mention in hadith or Qur'an which says, if one does not wake up for sehri they are exempt from fasting that day. If a Muslim does not eat suhoor, this is not a valid reason for being excused from fasting. ... Not keeping the fast deliberately because of forgetfulness, a mistake or laziness is a sin.

Is Niyat compulsory for fasting?

According to the Shafi madhab it is compulsory to make the Niyyat for Ramadhan fasting during the night time. According to a scholar, Imam Ibn Rajab, fasting in Muharram is the best form of fasting after the month of Ramadan.