Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
muslim:2045cZuhayr b. Ḥarb And Muḥammad b. al-Muthanná > ʿAbd al-Raḥman > Sufyān > Jabalah b. Suḥaym > Ibn ʿUmar

I heard Ibn 'Umar as saying that Messenger of Allah ﷺ forbade anyone taking two dates together without seeking the consent of his companions.  

مسلم:٢٠٤٥cحَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ وَمُحَمَّدُ بْنُ الْمُثَنَّى قَالاَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ عَنْ سُفْيَانَ عَنْ جَبَلَةَ بْنِ سُحَيْمٍ قَالَ

سَمِعْتُ ابْنَ عُمَرَ يَقُولُ نَهَى رَسُولُ اللَّهِ ﷺ أَنْ يَقْرِنَ الرَّجُلُ بَيْنَ التَّمْرَتَيْنِ حَتَّى يَسْتَأْذِنَ أَصْحَابَهُ  


See similar narrations below:

Collected by Bukhārī, Ibn Mājah, Aḥmad
bukhari:2489Khalāad b. Yaḥyá > Sufyān > Jabalah b. Suḥaym > Ibn ʿUmar

The Prophet ﷺ decreed that one should not eat two dates together at a time unless he gets the permission from his companions (sharing the meal with him).  

البخاري:٢٤٨٩حَدَّثَنَا خَلاَّدُ بْنُ يَحْيَى حَدَّثَنَا سُفْيَانُ حَدَّثَنَا جَبَلَةُ بْنُ سُحَيْمٍ قَالَ

سَمِعْتُ ابْنَ عُمَرَ ؓ يَقُولُ نَهَى النَّبِيُّ ﷺ أَنْ يَقْرُنَ الرَّجُلُ بَيْنَ التَّمْرَتَيْنِ جَمِيعًا حَتَّى يَسْتَأْذِنَ أَصْحَابَهُ  

ibnmajah:3331Muḥammad b. Bashhār > ʿAbd al-Raḥman b. Mahdī > Sufyān > Jabalah b. Suḥaym > Ibn ʿUmar

“The Messenger of Allah ﷺ forbade eating two dates at once unless he asks his companions permission to do so.”  

ابن ماجة:٣٣٣١حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ حَدَّثَنَا سُفْيَانُ عَنْ جَبَلَةَ بْنِ سُحَيْمٍ

سَمِعْتُ ابْنَ عُمَرَ يَقُولُ نَهَى رَسُولُ اللَّهِ ﷺ أَنْ يَقْرِنَ الرَّجُلُ بَيْنَ التَّمْرَتَيْنِ حَتَّى يَسْتَأْذِنَ أَصْحَابَهُ  

ahmad:5246Wakīʿ And ʿAbd al-Raḥman > Sufyān > Jabalah b. Suḥaym > Ibn ʿUmar > ʿAbd al-Raḥman > Ibn ʿUmar

“The Messenger of Allah ﷺ forbade eating two dates at once unless he asks his companions permission to do so.” (Using translation from Ibn Mājah 3331)   

أحمد:٥٢٤٦حَدَّثَنَا وَكِيعٌ وَعَبْدُ الرَّحْمَنِ عَنْ سُفْيَانَ عَنْ جَبَلَةَ بْنِ سُحَيْمٍ عَنِ ابْنِ عُمَرَ قَالَ عَبْدُ الرَّحْمَنِ سَمِعْتُ ابْنَ عُمَرَ قَالَ

نَهَى رَسُولُ اللهِ ﷺ أَنْ يَقْرُنَ الرَّجُلُ بَيْنَ التَّمْرَتَيْنِ حَتَّى يَسْتَأْذِنَ أَصْحَابَهُ