Sahih Muslim Book - 13, Hadith - 2528

حَدَّثَنَا يَحْيَى بْنُ يَحْيَى وَيَحْيَى بْنُ أَيُّوبَ وَقُتَيْبَةُ وَابْنُ حُجْرٍ قَالَ يَحْيَى بْنُ يَحْيَى أَخْبَرَنَا وَقَالَ الآخَرُونَ حَدَّثَنَا إِسْمَاعِيلُ - وَهُوَ ابْنُ جَعْفَرٍ - عَنْ مُحَمَّدٍ - وَهُوَ ابْنُ أَبِى حَرْمَلَةَ - عَنْ كُرَيْبٍ أَنَّ أُمَّ الْفَضْلِ بِنْتَ الْحَارِثِ بَعَثَتْهُ إِلَى مُعَاوِيَةَ بِالشَّامِ قَالَ فَقَدِمْتُ الشَّامَ فَقَضَيْتُ حَاجَتَهَا وَاسْتُهِلَّ عَلَىَّ رَمَضَانُ وَأَنَا بِالشَّامِ فَرَأَيْتُ الْهِلاَلَ لَيْلَةَ الْجُمُعَةِ ثُمَّ قَدِمْتُ الْمَدِينَةَ فِى آخِرِ الشَّهْرِ فَسَأَلَنِى عَبْدُ اللَّهِ بْنُ عَبَّاسٍ - رضى الله عنهما - ثُمَّ ذَكَرَ الْهِلاَلَ فَقَالَ مَتَى رَأَيْتُمُ الْهِلاَلَ فَقُلْتُ رَأَيْنَاهُ لَيْلَةَ الْجُمُعَةِ. فَقَالَ أَنْتَ رَأَيْتَهُ فَقُلْتُ نَعَمْ وَرَآهُ النَّاسُ وَصَامُوا وَصَامَ مُعَاوِيَةُ. فَقَالَ لَكِنَّا رَأَيْنَاهُ لَيْلَةَ السَّبْتِ فَلاَ نَزَالُ نَصُومُ حَتَّى نُكْمِلَ ثَلاَثِينَ أَوْ نَرَاهُ. فَقُلْتُ أَوَلاَ تَكْتَفِى بِرُؤْيَةِ مُعَاوِيَةَ وَصِيَامِهِ فَقَالَ لاَ هَكَذَا أَمَرَنَا رَسُولُ اللَّهِ -صلى الله عليه وسلم-. وَشَكَّ يَحْيَى بْنُ يَحْيَى فِى نَكْتَفِى أَوْ تَكْتَفِى.

It was narrated from Kuraib that Umm Al-Fadl Bint Al-Harith sent him to Muawiyah in Ash-Sham. He said: “I arrived in Ash-Sham and I finished her errand, and the crescent of Ramadan appeared while I was in the Ash-Sham, where I saw the crescent moon on the night of Friday. Then I came to Al-Madinah at the end of the month, and I asked Abdullah bin Abbas [May Allah be pleased with him], who mentioned the crescent and said: ‘When did you see the crescent?’ I said: ‘We saw it on the night of Friday.’ He said: ‘Did you see it?’ I said: ‘Yes, and the people saw it, and they fasted, and Muawiyah fasted.’ He said: ‘But we saw it on the night of Saturday, and we will keep fasting until we complete thirty days, or we see it.’ I said: ‘Is the sighting and fasting not sufficient for you?’ He said: ‘no, this is what the Messenger of Allah (SAW) enjoined upon us.’”