Saad used to serve the Prophet ﷺ, and the Prophet ﷺ enjoyed his conversation. Saad reported that the Prophet ﷺ forbade iqran, meaning eating dates two at a time.
حدثنا محمد بن بشار حدثنا أبو داود حدثنا أبو عامر الخزاز عن الحسن
وكان سعد يخدم النبي ﷺ وكان يعجبه حديثه أن النبي ﷺ نهى عن الإقران يعني في التمر
No references are available.
[Sahih. Ahmad narrated it, 1/199, from Abu Dawud Tayalisi with a similar meaning, and Busiri graded it sahih. The preceding hadith serves as a corroborating witness for it. See also Sunan Abu Dawud, no. 3834.