Fasting
شَهۡرُ رَمَضَانَ الَّذِىۡٓ اُنۡزِلَ فِيۡهِ الۡقُرۡاٰنُ هُدًى لِّلنَّاسِ وَ بَيِّنٰتٍ مِّنَ الۡهُدٰى وَالۡفُرۡقَانِۚ فَمَنۡ شَهِدَ مِنۡكُمُ الشَّهۡرَ فَلۡيَـصُمۡهُ ؕ وَمَنۡ کَانَ مَرِيۡضًا اَوۡ عَلٰى سَفَرٍ فَعِدَّةٌ مِّنۡ اَيَّامٍ اُخَرَؕ يُرِيۡدُ اللّٰهُ بِکُمُ الۡيُسۡرَ وَلَا يُرِيۡدُ بِکُمُ الۡعُسۡرَ وَلِتُکۡمِلُوا الۡعِدَّةَ وَلِتُکَبِّرُوا اللّٰهَ عَلٰى مَا هَدٰٮكُمۡ وَلَعَلَّکُمۡ تَشۡكُرُوۡنَ
The month of Ramadan (is that) in which was revealed the Qur'an, a guidance for the people and clear proofs of guidance and criterion. So, whoever sights (the new moon of) the month, let him fast it; and whoever is ill or on a journey - then an equal number of other days. Allah intends for you ease and does not intend for you hardship and (wants) for you to complete the period and to glorify Allah for that [to] which He has guided you, and perhaps you will be grateful.
Al Baqara (4) - 185
Start Fast (Sahoor)
End Fast (Iftar)
Things that don't break Fast
Eating or drinking unintentionally
Mosquito, fly going through throat
Water entering ears
Dust, dirt going through throat
Swallowing one's own saliva
Injection
Surma in eyes
Taking bath to keep cool
Rubbing oil on body
Vomit unintentionall
Applying itr or perfume
Miswak
Wet dream
Blood donation/ test
Rinsing mouth or nose (not excessive)
Sleeping
Things that break Fast
Eating
Drinking
Smoking
Intercourse
Masturbation
Vomiting intentionally
Menstruation
Nose intake
Ear intake
People exempted from fasting
Sick
Traveller