Digha Nikaya 1:1040
SUJATOdveme piṇḍapātā samasamaphalā samavipākā, ativiya aññehi piṇḍapātehi mahapphalatarā ca mahānisaṁsatarā ca.
There are two almsmeal offerings that have identical fruit and result, and are more fruitful and beneficial than other almsmeal offerings.