Jami` at-Tirmidhi 767
جامع الترمذي#767SahihAbu Qatadah said:"It was said: 'O Messenger of Allah! What is the case of the one who fasts daily?' He said: 'He did not fast nor break (the fast).'" Or, he said: "He never fasted nor broke (his fast)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih - Bukhari And Muslim
In-book reference: 8:86