Hadith 733
Chapter 35: Performing A Voluntary Fast Without Planning It The Night Before - كتاب الصوم عن رسول الله صلى الله عليه وسلم
حَدَّثَنَا هَنَّادٌ، حَدَّثَنَا وَكِيعٌ، عَنْ طَلْحَةَ بْنِ يَحْيَى، عَنْ عَمَّتِهِ، عَائِشَةَ بِنْتِ طَلْحَةَ عَنْ عَائِشَةَ أُمِّ الْمُؤْمِنِينَ، قَالَتْ دَخَلَ عَلَىَّ رَسُولُ اللَّهِ صلى الله عليه وسلم يَوْمًا فَقَالَ " هَلْ عِنْدَكُمْ شَيْءٌ " . قَالَتْ قُلْتُ لاَ . قَالَ " فَإِنِّي صَائِمٌ " .
Aishah, the Mother of the Believers, narrated:
"The Messenger of Allah visited me one day and said: 'Do you have anything (to eat)?'" She said: "I said: 'No.' He said: 'Then I am fasting.'"
Reference : Jami` at-Tirmidhi 733
In-book reference : Book 8, Hadith 52