Sahih al-Bukhari 6458
Sahih al-Bukhari · Book 81: To make the Heart Tender (Ar-Riqaq) · How the Prophet (saws) and his Companions used to live
Narrated `Aisha:
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى ، حَدَّثَنَا يَحْيَى ، حَدَّثَنَا هِشَامٌ ، أَخْبَرَنِي أَبِي ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ قَالَتْ كَانَ يَأْتِي عَلَيْنَا الشَّهْرُ مَا نُوقِدُ فِيهِ نَارًا، إِنَّمَا هُوَ التَّمْرُ وَالْمَاءُ، إِلاَّ أَنْ نُؤْتَى بِاللُّحَيْمِ.
A complete month would pass by during which we would not make a fire (for cooking), and our food used to be only dates and water unless we were given a present of some meat.