Jami` at-Tirmidhi 2471
جامع الترمذي#2471SahihAishah narrated:"We, the family of Muhammad, would go for a month without kindling a fire, having only water and dates
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
Bashar Awad MaaroufSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 37:57