The Prophet ﷺ said, "I do not eat mastigure, but I do not prohibit its eating."  

قَالَ النَّبِيُّ ﷺ الضَّبُّ لَسْتُ آكُلُهُ وَلاَ أُحَرِّمُهُ  

Ash-'Shuʿbi asked me, "Did you notice how Al-Hasan used to narrate Hadiths from the Prophets? I stayed with Ibn ʿUmar for about two or one-and-half years and I did not hear him narrating any thing from the Prophet ﷺ except his (Hadith): He (Ibn ʿUmar) said, "Some of the companions of the Prophet ﷺ including Saʿd, were going to eat meat, but one of the wives of the Prophet ﷺ called them, saying, 'It is the meat of a Mastigure.' The people then stopped eating it. On that Messenger of Allah ﷺ said, 'Carry on eating, for it is lawful.' Or said, 'There is no harm in eating it, but it is not from my meals."  

عَنِ النَّبِيِّ ﷺ وَقَاعَدْتُ ابْنَ عُمَرَ قَرِيبًا مِنْ سَنَتَيْنِ أَوْ سَنَةٍ وَنِصْفٍ فَلَمْ أَسْمَعْهُ يُحَدِّثُ عَنِ النَّبِيِّ ﷺ غَيْرَ هَذَا قَالَ كَانَ نَاسٌ مِنْ أَصْحَابِ النَّبِيِّ ﷺ فِيهِمْ سَعْدٌ فَذَهَبُوا يَأْكُلُونَ مِنْ لَحْمٍ فَنَادَتْهُمُ امْرَأَةٌ مِنْ بَعْضِ أَزْوَاجِ النَّبِيِّ ﷺ إِنَّهُ لَحْمُ ضَبٍّ فَأَمْسَكُوا فَقَالَ رَسُولُ اللَّهِ ﷺ كُلُوا أَوِ اطْعَمُوا فَإِنَّهُ حَلاَلٌ أَوْ قَالَ لاَ بَأْسَ بِهِ شَكَّ فِيهِ وَلَكِنَّهُ لَيْسَ مِنْ طَعَامِي  

That he went with Messenger of Allah ﷺ to the house of Maimuna, who was his and Ibn ʿAbbas' aunt. He found with her a roasted mastigure which her sister Hufaida bint Al-Harith had brought from Najd. Maimuna presented the mastigure before Messenger of Allah ﷺ who rarely started eating any (unfamiliar) food before it was described and named for him. (But that time) Messenger of Allah ﷺ stretched his hand towards the (meat of the) mastigure whereupon a lady from among those who were present, said, "You should inform Messenger of Allah ﷺ of what you have presented to him. O Messenger of Allah ﷺ! It is the meat of a mastigure." (On learning that) Messenger of Allah ﷺ withdrew his hand from the meat of the mastigure. Khalid bin Al-Walid said, "O Messenger of Allah ﷺ! Is this unlawful to eat?" Messenger of Allah ﷺ replied, "No, but it is not found in the land of my people, so I do not like it." Khalid said, "Then I pulled the mastigure (meat) towards me and ate it while Messenger of Allah ﷺ was looking at me.  

أَخْبَرَهُ أَنَّهُ دَخَلَ مَعَ رَسُولِ اللَّهِ ﷺ عَلَى مَيْمُونَةَ وَهْىَ خَالَتُهُ وَخَالَةُ ابْنِ عَبَّاسٍ فَوَجَدَ عِنْدَهَا ضَبًّا مَحْنُوذًا قَدِمَتْ بِهِ أُخْتُهَا حُفَيْدَةُ بِنْتُ الْحَارِثِ مِنْ نَجْدٍ فَقَدَّمَتِ الضَّبَّ لِرَسُولِ اللَّهِ ﷺ وَكَانَ قَلَّمَا يُقَدِّمُ يَدَهُ لِطَعَامٍ حَتَّى يُحَدَّثَ بِهِ وَيُسَمَّى لَهُ فَأَهْوَى رَسُولُ اللَّهِ ﷺ يَدَهُ إِلَى الضَّبِّ فَقَالَتِ امْرَأَةٌ مِنَ النِّسْوَةِ الْحُضُورِ أَخْبِرْنَ رَسُولَ اللَّهِ ﷺ مَا قَدَّمْتُنَّ لَهُ هُوَ الضَّبُّ يَا رَسُولَ اللَّهِ فَرَفَعَ رَسُولُ اللَّهِ ﷺ يَدَهُ عَنِ الضَّبِّ فَقَالَ خَالِدُ بْنُ الْوَلِيدِ أَحَرَامٌ الضَّبُّ يَا رَسُولَ اللَّهِ قَالَ لاَ وَلَكِنْ لَمْ يَكُنْ بِأَرْضِ قَوْمِي فَأَجِدُنِي أَعَافُهُ قَالَ خَالِدٌ فَاجْتَرَرْتُهُ فَأَكَلْتُهُ وَرَسُولُ اللَّهِ ﷺ يَنْظُرُ إِلَىَّ  

Ibn ʿAbbas said: Um Hufaid, Ibn ʿAbbas's aunt sent some dried yogurt (butter free), ghee (butter) and a mastigar to the Prophet ﷺ as a gift. The Prophet ﷺ ate the dried yogurt and butter but left the mastigar because he disliked it. Ibn ʿAbbas said, "The mastigar was eaten at the table of Messenger of Allah ﷺ and if it had been illegal to eat, it could not have been eaten at the table of Messenger of Allah ﷺ."  

أَهْدَتْ أُمُّ حُفَيْدٍ خَالَةُ ابْنِ عَبَّاسٍ إِلَى النَّبِيِّ ﷺ أَقِطًا وَسَمْنًا وَأَضُبًّا فَأَكَلَ النَّبِيُّ ﷺ مِنَ الأَقِطِ وَالسَّمْنِ وَتَرَكَ الضَّبَّ تَقَذُّرًا قَالَ ابْنُ عَبَّاسٍ فَأُكِلَ عَلَى مَائِدَةِ رَسُولِ اللَّهِ ﷺ وَلَوْ كَانَ حَرَامًا مَا أُكِلَ عَلَى مَائِدَةِ رَسُولِ اللَّهِ ﷺ