“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)

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