Whoever gives one who has been fasting something with which to break his fast it shall result in the forgiveness of his sins and it shall save him from Hell, and he will have a reward equal to his without diminishing it.
Prophet Mohamed PBUH (Sahih AlBayhaqi)
Why Ramadan Waqf
Whoever gives a full meal to one who is fasting Allah SubHanuhu wa Ta'ala will give him the drink from my Pond (fountain – Kauthar) and he will not feel the thirst till he enters Paradise.