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Sahih al-Bukhari

كتاب الصوم

Fasting

Chapter 30Hadith 1917

حَدَّثَنَا سَعِيدُ بْنُ أَبِي مَرْيَمَ، حَدَّثَنَا ابْنُ أَبِي حَازِمٍ، عَنْ أَبِيهِ، عَنْ سَهْلِ بْنِ سَعْدٍ، ح‏.‏ حَدَّثَنِي سَعِيدُ بْنُ أَبِي مَرْيَمَ، حَدَّثَنَا أَبُو غَسَّانَ، مُحَمَّدُ بْنُ مُطَرِّفٍ قَالَ حَدَّثَنِي أَبُو حَازِمٍ، عَنْ سَهْلِ بْنِ سَعْدٍ، قَالَ أُنْزِلَتْ ‏ {‏وَكُلُوا وَاشْرَبُوا حَتَّى يَتَبَيَّنَ لَكُمُ الْخَيْطُ الأَبْيَضُ مِنَ الْخَيْطِ الأَسْوَدِ‏} ‏ وَلَمْ يَنْزِلْ مِنَ الْفَجْرِ، فَكَانَ رِجَالٌ إِذَا أَرَادُوا الصَّوْمَ رَبَطَ أَحَدُهُمْ فِي رِجْلِهِ الْخَيْطَ الأَبْيَضَ وَالْخَيْطَ الأَسْوَدَ، وَلَمْ يَزَلْ يَأْكُلُ حَتَّى يَتَبَيَّنَ لَهُ رُؤْيَتُهُمَا، فَأَنْزَلَ اللَّهُ بَعْدُ ‏ {‏مِنَ الْفَجْرِ‏} ‏ فَعَلِمُوا أَنَّهُ إِنَّمَا يَعْنِي اللَّيْلَ وَالنَّهَارَ‏.‏

When the following verses were revealed: 'Eat and drink until the white thread appears to you, distinct from the black thread' and of dawn was not revealed, some people who intended to fast, tied black and white threads to their legs and went on eating till they differentiated between the two. Allah then revealed the words, 'of dawn', and it became clear that meant night and day.

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When Allah wants two hearts to meet, what is the hadith?
A widely quoted teaching states that when Allah wants two people to meet, He makes their paths converge — often summarized as when He wants two hearts to meet, they will meet. Muslims frequently reflect on this narration as a reminder of divine decree (qadar), trust in Allah's plan, and patience regarding relationships and life events. Always verify wording and grading with qualified scholars and authentic sources.