Hadith 580B1

قَالَ يَحْيَى : سَمِعْتُ مَالِكًا يَقُولُ فِي الَّذِي يَرَى هِلَالَ رَمَضَانَ وَحْدَهُ : أَنَّهُ يَصُومُ لَا يَنْبَغِي لَهُ أَنْ يُفْطِرَ وَهُوَ يَعْلَمُ أَنَّ ذَلِكَ الْيَوْمَ مِنْ رَمَضَانَ ، قَالَ : وَمَنْ رَأَى هِلَالَ شَوَّالٍ وَحْدَهُ فَإِنَّهُ لَا يُفْطِرُ لِأَنَّ النَّاسَ يَتَّهِمُونَ عَلَى أَنْ يُفْطِرَ مِنْهُمْ مَنْ لَيْسَ مَأْمُونًا ، وَيَقُولُ أُولَئِكَ : إِذَا ظَهَرَ عَلَيْهِمْ قَدْ رَأَيْنَا الْهِلَالَ ، وَمَنْ رَأَى هِلَالَ شَوَّالٍ نَهَارًا فَلَا يُفْطِرْ وَيُتِمُّ صِيَامَ يَوْمِهِ ذَلِكَ ، فَإِنَّمَا هُوَ هِلَالُ اللَّيْلَةِ الَّتِي تَأْتِي
Imam Malik, may Allah have mercy on him, said: Whoever alone sees the crescent of Ramadan should fast, because it is not permissible for him to break the fast when he knows that this day is of Ramadan. And whoever alone sees the crescent of Shawwal should not break the fast, because people will accuse him, saying that among us, the person who is not trustworthy does not fast. And when the crescent becomes apparent to the people, he should say that he had seen the crescent. And whoever sees the crescent of Shawwal during the day should not break the fast, rather he should complete the fast, because that crescent is for the coming night.
Hadith Reference موطا امام مالك رواية يحييٰ / كتاب الصيام / 580B1
Hadith Takhrij «شركة الحروف نمبر: 586، فواد عبدالباقي نمبر: 18 - كِتَابُ الصِّيَامِ-ح: 4»