Humaid b. 'Abd al-Rahman reported that Abu Huraira had narrated to him that the Messenger of Allah ﷺ commanded the person (who) broke the fast in Ramadan to free a slave or observe fasts for two (consecutive) months or feed sixty poor persons. (Using translation from Muslim 1111e)
أَنَّ النَّبِيَّ ﷺ أَمَرَ رَجُلًا أَفْطَرَ فِي رَمَضَانَ أَنْ يُعْتِقَ رَقَبَةً أَوْ يَصُومَ شَهْرَيْنِ أَوْ يُطْعِمَ سِتِّينَ مِسْكِينًا