كتاب الأشربة
36  
The Book of Drinks
(25)
Chapter: The prohibition of eating two dates etc., at a time when eating with a group, except with the permission of one's companions
(25)
باب نَهْيِ الآكِلِ مَعَ جَمَاعَةٍ عَنْ قِرَانِ تَمْرَتَيْنِ وَنَحْوِهِمَا فِي لُقْمَةٍ إِلاَّ بِإِذْنِ أَصْحَابِهِ
Sahih Muslim 2045 a

Jabala b. Suhaim reported:

Ibn Zubair used to provide us with dates during the time that the people were hard pressed because of famine (Once) as we were busy in eating there happened to appear before us Ibn 'Umar. He said: Don't eat two dates together, for Allah's Messenger (ﷺ) forbade eating them together but only after seeking permission from his brother (partner). Shu'ba said: I do not think these words pertaining to seeking permission but from the words of Ibn 'Umar.
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، قَالَ سَمِعْتُ جَبَلَةَ،

بْنَ سُحَيْمٍ قَالَ كَانَ ابْنُ الزُّبَيْرِ يَرْزُقُنَا التَّمْرَ - قَالَ - وَقَدْ كَانَ أَصَابَ النَّاسَ يَوْمَئِذٍ جُهْدٌ وَكُنَّا نَأْكُلُ فَيَمُرُّ عَلَيْنَا ابْنُ عُمَرَ وَنَحْنُ نَأْكُلُ فَيَقُولُ لاَ تُقَارِنُوا فَإِنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى عَنِ الإِقْرَانِ إِلاَّ أَنْ يَسْتَأْذِنَ الرَّجُلُ أَخَاهُ ‏.‏ قَالَ شُعْبَةُ لاَ أُرَى هَذِهِ الْكَلِمَةَ إِلاَّ مِنْ كَلِمَةِ ابْنِ عُمَرَ ‏.‏ يَعْنِي الاِسْتِئْذَانَ ‏.‏

Reference : Sahih Muslim 2045a
In-book reference : Book 36, Hadith 207
USC-MSA web (English) reference : Book 23, Hadith 5075
  (deprecated numbering scheme)