سنن ابي داود
Sunan Abi Dawud
كتاب الصيام
Fasting (Kitab Al-Siyam)
باب إِذَا رُؤِيَ الْهِلاَلُ فِي بَلَدٍ قَبْلَ الآخَرِينَ بِلَيْلَةٍ
Chapter: When The Crescent Is Sighted In A Land A Night Before It Is Sighted In Other Lands.
Hadith 2333
حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ مُعَاذٍ ، حَدَّثَنِي أَبِي ، حَدَّثَنَا الْأَشْعَثُ ، عَنْ الْحَسَنِ ، فِي رَجُلٍ كَانَ بِمِصْرٍ مِنَ الْأَمْصَارِ فَصَامَ يَوْمَ الِاثْنَيْنِ ، وَشَهِدَ رَجُلَانِ أَنَّهُمَا رَأَيَا الْهِلَالَ لَيْلَةَ الْأَحَدِ ، فَقَالَ : " لَا يَقْضِي ذَلِكَ الْيَوْمَ الرَّجُلُ وَلَا أَهْلُ مِصْرِهِ ، إِلَّا أَنْ يَعْلَمُوا أَنَّ أَهْلَ مِصْرٍ مِنْ أَمْصَارِ الْمُسْلِمِينَ قَدْ صَامُوا يَوْمَ الْأَحَدِ ، فَيَقْضُونَهُ " .
Al-Hasan said about a person who was in a certain city. He fasted on Monday, and twp persons bore witness that they had sighted the moon on the night of sunday. He said: That man and the people of his city should not fast as an atonement except that they know (for certain) that the people of a certain city of Muslims had fasted on Sunday. In that case they should keep fast as an atonement.
