´It was narrated that from ‘Abdur-Rahman bin Abu Bakrah, from his father, that the Prophet (ﷺ) said:` “Two months of ‘Eid whose reward cannot be reduced (even if they are twenty-nine days): ‘Ramadan and Dhul-Hijjah.”
Hadith Referenceسنن ابن ماجه / كتاب الصيام / 1659
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح بخاري
´It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:` “Al-Fitr is the day when you break your fast and Al-Adha is the day when you offer sacrifices.”