Feeding a fasting person is one of the most beloved deeds in Ramadan. The Prophet ﷺ taught that the one who provides iftar earns a reward like the fasting person, without reducing the fasting person’s reward at all.

“Whoever gives iftar to a fasting person will have a reward like his, without that detracting from the reward of the fasting person.”

Sunan al-Tirmidhi