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." (Using translation from Tirmidhī 723)
عَنِ النَّبِيِّ ﷺ قَالَ «مَنْ أَفْطَرَ يَوْمًا مِنْ رَمَضَانَ مِنْ غَيْرِ مَرَضٍ وَلَا رُخْصَةٍ لَمْ يَقْضِهِ صِيَامُ الدَّهْرِ كُلِّهِ إِنْ صَامَهُ»