Sahih Muslim
Sahih Muslim 1088a
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا مُحَمَّدُ بْنُ فُضَيْلٍ، عَنْ حُصَيْنٍ، عَنْ عَمْرِو بْنِ، مُرَّةَ عَنْ أَبِي الْبَخْتَرِيِّ، قَالَ خَرَجْنَا لِلْعُمْرَةِ فَلَمَّا نَزَلْنَا بِبَطْنِ نَخْلَةَ - قَالَ - تَرَاءَيْنَا الْهِلاَلَ فَقَالَ بَعْضُ الْقَوْمِ هُوَ ابْنُ ثَلاَثٍ . وَقَالَ بَعْضُ الْقَوْمِ هُوَ ابْنُ لَيْلَتَيْنِ قَالَ فَلَقِينَا ابْنَ عَبَّاسٍ فَقُلْنَا إِنَّا رَأَيْنَا الْهِلاَلَ فَقَالَ بَعْضُ الْقَوْمِ هُوَ ابْنُ ثَلاَثٍ وَقَالَ بَعْضُ الْقَوْمِ هُوَ ابْنُ لَيْلَتَيْنِ . فَقَالَ أَىَّ لَيْلَةٍ رَأَيْتُمُوهُ قَالَ فَقُلْنَا لَيْلَةَ كَذَا وَكَذَا . فَقَالَ إِنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " إِنَّ اللَّهَ مَدَّهُ لِلرُّؤْيَةِ فَهُوَ لِلَيْلَةِ رَأَيْتُمُوهُ " .
Abu al-Bakhtari reported: We set out to perform Umra and camped in the valley of Nakhlah. We looked for the crescent, and some people said it was three nights old while others said it was two nights old. We met Ibn Abbas and told him what we had seen and what people said. He asked, “On which night did you see it?” We told him the night. He replied that the Messenger of Allah said Allah had made the moon visible for sighting, so it is counted from the night when it is seen.