Sahih al-Bukhari 6458

Arabic

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.‏

English translation

Narrated `Aisha: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

Reference: Sahih al-Bukhari 6458, Book of To make the Heart Tender (Ar-Riqaq). English translation by Dr. Muhammad Muhsin Khan.