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.
ahmad:9885Muḥammad b. Jaʿfar > Shuʿbah > Muḥammad b. Ziyād > Abū Hurayrah

[Machine] The Prophet ﷺ said, "Do not fast until you see the crescent moon, and do not break your fast until you see the crescent moon. Alternatively, he said, 'Fast after sighting it and break your fast after sighting it. If it is obscured for you, complete thirty days.' Shu'bah said, 'And my most knowledgeable opinion is that he said, 'Do not fast until you see the crescent moon, and do not break your fast until you see the crescent moon.'"  

أحمد:٩٨٨٥حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ قَالَ حَدَّثَنَا شُعْبَةُ عَنْ مُحَمَّدِ بْنِ زِيَادٍ قَالَ سَمِعْتُ أَبَا هُرَيْرَةَ يُحَدِّثُ

أَنَّ رَسُولَ اللهِ ﷺ قَالَ لَا تَصُومُوا حَتَّى تَرَوْا الْهِلَالَ وَلَا تُفْطِرُوا حَتَّى تَرَوْا الْهِلَالَ أَوْ قَالَ صُومُوا لِرُؤْيَتِهِ وَأَفْطِرُوا لِرُؤْيَتِهِ فَإِنْ غَبِيَ عَلَيْكُمْ فَعُدُّوا ثَلَاثِينَ قَالَ شُعْبَةُ وَأَكْثَرُ عِلْمِي أَنَّهُ قَالَ لَا تَصُومُوا حَتَّى تَرَوْا الْهِلَالَ وَلَا تُفْطِرُوا حَتَّى تَرَوْا الْهِلَالَ