Narrated Ibn `Umar: The Prophet 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).
Hadith ReferenceSahih Bukhari / The Book of Partnership / Hadith: 2489
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة