Hadith #723The Book on Fasting · Narrated by Abdur Rahman bin Mahdi عبد الرحمن بن مهدي, Abu Hurairah, Habib bin Abi Thabit حبيب بن أبي ثابت قيس, Muhammad bin Bashar Bindar محمد بن بشار بندار, Qays bin Dinar Abu Thabit قيس بن دينار أبو ثابت, Sufyan bin Sa‘id Ath-Thawri سفيان الثوري, Yahya bin Sa'id bin Farroukh al-Qatan يحيى بن سعيد بن فروخ القطان
the Messenger of Allah said: “Whoever breaks the fast during Ramadan without an allowance or illness, then if he fasted for all time, his fasting would not make up for it.”