"A Bedouin brought a rabbit to the Messenger of Allah that he had grilled and placed it before him. The messenger of Allah refrained from eating but he told the people to eat. The Bedouin also refrained from eating, and the Messenger of Allah said to him: 'What is keeping you from eating?' He said: 'I fast three days of each month.' He Said: "If you are going to fast, then fast the bright days (Al-Ghurr)."  

جَاءَ أَعْرَابِيٌّ إِلَى النَّبِيِّ ﷺ بِأَرْنَبٍ قَدْ شَوَاهَا فَوَضَعَهَا بَيْنَ يَدَيْهِ فَأَمْسَكَ رَسُولُ اللَّهِ ﷺ فَلَمْ يَأْكُلْ وَأَمَرَ الْقَوْمَ أَنْ يَأْكُلُوا وَأَمْسَكَ الأَعْرَابِيُّ فَقَالَ لَهُ رَسُولُ اللَّهِ ﷺ مَا يَمْنَعُكَ أَنْ تَأْكُلَ قَالَ إِنِّي أَصُومُ ثَلاَثَةَ أَيَّامٍ مِنْ كُلِّ شَهْرٍ قَالَ إِنْ كُنْتَ صَائِمًا فَصُمِ الْغُرَّ  

"Umar, May Allah be pleased with us on the day when we stopped at Al-Qaha?' Abu Dharr said: 'I was. A rabbit was brought to the Messenger Allah and the man who brought it said: I saw it bleeding (menstruating). The Prophet did not eat, then he said: "Eat." A man said: "I am fasting." He said: "What fast are you observing?" He said: "Three days each month" He said: "Why don't yo0u fast the bright shining days, the thirteenth, fourteenth and fifteenth."'  

عُمَرُ ؓ مَنْ حَاضِرُنَا يَوْمَ الْقَاحَةِ قَالَ قَالَ أَبُو ذَرٍّ أَنَا أُتِيَ رَسُولُ اللَّهِ ﷺ بِأَرْنَبٍ فَقَالَ الرَّجُلُ الَّذِي جَاءَ بِهَا إِنِّي رَأَيْتُهَا تَدْمَى فَكَانَ النَّبِيُّ ﷺ لَمْ يَأْكُلْ ثُمَّ إِنَّهُ قَالَ كُلُوا فَقَالَ رَجُلٌ إِنِّي صَائِمٌ قَالَ وَمَا صَوْمُكَ قَالَ مِنْ كُلِّ شَهْرٍ ثَلاَثَةُ أَيَّامٍ قَالَ فَأَيْنَ أَنْتَ عَنِ الْبِيضِ الْغُرِّ ثَلاَثَ عَشْرَةَ وَأَرْبَعَ عَشْرَةَ وَخَمْسَ عَشْرَةَ  

"We disturbed a rabbit in Marr Az-Zahran so I caught it, and brought it to Abu Talhah who slaughtered it, and sent me with its thighs and haunches to the Prophet and he accepted it."  

سَمِعْتُ أَنَسًا يَقُولُ أَنْفَجْنَا أَرْنَبًا بِمَرِّ الظَّهْرَانِ فَأَخَذْتُهَا فَجِئْتُ بِهَا إِلَى أَبِي طَلْحَةَ فَذَبَحَهَا فَبَعَثَنِي بِفَخِذَيْهَا وَوَرِكَيْهَا إِلَى النَّبِيِّ ﷺ فَقَبِلَهُ  

"I caught two rabbits but I could not find anything with which to slaughter then, so I slaughtered them with a sharp-edged stone. I asked the Prophet about that and he commanded me to eat them"  

أَصَبْتُ أَرْنَبَيْنِ فَلَمْ أَجِدْ مَا أُذَكِّيهِمَا بِهِ فَذَكَّيْتُهُمَا بِمَرْوَةٍ فَسَأَلْتُ النَّبِيَّ ﷺ عَنْ ذَلِكَ فَأَمَرَنِي بِأَكْلِهِمَا