أحسن الله إليكم Sheikh, a brother woke up for suhoor and his brother said there is 30 min until fajr. Later on they realized that it was 30 min until sunrise and ate after fajr because of that. Do they make up their fasts for that day?

Ustadh AbdulAziz al-Haqqan

If there was no heedlessness on their behalf and they genuinely made a mistake, so they looked and saw sunrise as fajir, then there is nothing upon them.