صحيح البخاري
Sahih Bukhari
كتاب الصوم
The Book of As-Saum (The Fasting).
بَابُ حَقِّ الضَّيْفِ فِي الصَّوْمِ:
(54) Chapter. The right of the guest in fasting.
Hadith 1974
حَدَّثَنَا إِسْحَاقُ ، أَخْبَرَنَا هَارُونُ بْنُ إِسْمَاعِيلَ ، حَدَّثَنَا عَلِيٌّ ، حَدَّثَنَا يَحْيَى ، قَالَ : حَدَّثَنِي أَبُو سَلَمَةَ ، قَالَ : حَدَّثَنِي عَبْدُ اللَّهِ بْنُ عَمْرِو بْنِ الْعَاصِ رَضِيَ اللَّهُ عَنْهُمَا ، قَالَ : " دَخَلَ عَلَيَّ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، فَذَكَرَ الْحَدِيثَ يَعْنِي " إِنَّ لِزَوْرِكَ عَلَيْكَ حَقًّا ، وَإِنَّ لِزَوْجِكَ عَلَيْكَ حَقًّا " ، فَقُلْتُ : وَمَا صَوْمُ دَاوُدَ ؟ قَالَ : نِصْفُ الدَّهْرِ .
Narrated `Abdullah bin `Amr bin Al-`As: "Once Allah's Apostle came to me," and then he narrated the whole narration, i.e. your guest has a right on you, and your wife has a right on you. I then asked about the fasting of David. The Prophet replied, "Half of the year," (i.e. he used to fast on every alternate day).
