"It was said: 'O Messenger of Allah, so and so never broke his fast, even for one day for the rest of his life.' He said: 'He has neither fasted nor broken his fast."" 'Ata said: "someone who heard him told me that Ibn 'Umar (said) that the Prophet said: 'Whoever fasts every day of his life, then he has not fasted." (Using translation from Nasāʾī 2379)
قِيلَ يَا رَسُولَ اللهِ إِنَّ فُلَانًا لَا يُفْطِرُ نَهَارًا الدَّهْرَ فَقَالَ «لَا صَامَ وَلَا أَفْطَرَ»