Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:8206[Chain 1] Abū Bakr b. al-Ḥārith al-Faqīh > ʿAlī b. ʿUmar al-Ḥāfiẓ > Yaʿqūb b. Ibrāhīm al-Bazzāz > al-Ḥasan b. ʿArafah > Ismāʿīl b. ʿUlayyah > Ayyūb > Muḥammad b. al-Munkadir > Abū Hurayrah ؓ [Chain 2] ʿAlī > Abū ʿUbayd al-Qāsim b. Ismāʿīl > Muḥammad b. al-Walīd > ʿAbd al-Wahhāb > Ayyūb > Muḥammad b. al-Munkadir > Abū Hurayrah

[Machine] The month is only twenty-nine days, so do not fast until you see it, and do not break your fast until you see it. But if it is cloudy to you, then complete the count of thirty days. Your breaking of the fast will be on the day you break it, and your sacrifice will be on the day you sacrifice. Every Arafah is a standing place, and every Muzdalifah is a sacrifice, and every valley of Makkah is a sacrifice.  

البيهقي:٨٢٠٦أَخْبَرَنَا أَبُو بَكْرِ بْنُ الْحَارِثِ الْفَقِيهُ أنبأ عَلِيُّ بْنُ عُمَرَ الْحَافِظُ ثنا يَعْقُوبُ بْنُ إِبْرَاهِيمَ الْبَزَّازُ ثنا الْحَسَنُ بْنُ عَرَفَةَ ثنا إِسْمَاعِيلُ بْنُ عُلَيَّةَ عَنْ أَيُّوبَ عَنْ مُحَمَّدِ بْنِ الْمُنْكَدِرِ عَنْ أَبِي هُرَيْرَةَ ؓ ح قَالَ وَأَخْبَرَنَا عَلِيٌّ ثنا أَبُو عُبَيْدٍ الْقَاسِمُ بْنُ إِسْمَاعِيلَ ثنا مُحَمَّدُ بْنُ الْوَلِيدِ ثنا عَبْدُ الْوَهَّابِ أنبأ أَيُّوبُ عَنْ مُحَمَّدِ بْنِ الْمُنْكَدِرِ عَنْ أَبِي هُرَيْرَةَ قَالَ

إِنَّمَا الشَّهْرُ تِسْعٌ وَعِشْرُونَ فَلَا تَصُومُوا حَتَّى تَرَوْهُ وَلَا تُفْطِرُوا حَتَّى تَرَوْهُ فَإِنْ غُمَّ عَلَيْكُمْ فَأَكْمِلُوا الْعِدَّةَ ثَلَاثِينَ فِطْرُكُمْ يَوْمَ تُفْطِرُونَ وَأَضْحَاكُمْ يَوْمَ تُضَحُّونَ وَكُلُّ عَرَفَةَ مَوْقِفٌ وَكُلُّ مِنًى مَنْحَرٌ وَكُلُّ فِجَاجِ مَكَّةَ مَنْحَرٌ  

وَقَدْ رُوِّينَا مِنْ حَدِيثِ حَمَّادِ بْنِ زَيْدٍ عَنْ أَيُّوبَ مَرْفُوعًا وَتَابَعَهُ عَبْدُ الْوَارِثِ وَرَوْحُ بْنُ الْقَاسِمِ عَنِ ابْنِ الْمُنْكَدِرِ مَرْفُوعًا