Al-Qur’an 2:183
O you who believe! Fasting is prescribed to you as it was prescribed to those before you, so that you may learn self-restraint
(Sahih Bukhari, Volume 3, Book 31, Number 120)
The Prophet (pbuh) said, “There is a gate in Paradise called Ar- Raiyan, and those who observe fasting will enter through it on the Day of Resurrection and none except them will enter through it”.