Hadith: The family of Muhammad (ﷺ) never ate two meals in a day except that one of them was dates

عَنْ عَائِشَةَ أُمِّ المُؤْمِنينَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ:
مَا أَكَلَ آلُ مُحَمَّدٍ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ أَكْلَتَيْنِ فِي يَوْمٍ إِلَّا إِحْدَاهُمَا تَمْرٌ.
[صحيح] - [متفق عليه] - [صحيح البخاري: 6455]

‘Ā’ishah, the Mother of the Believers (may Allah be pleased with her), reported:
The family of Muhammad (ﷺ) never ate two meals in a day except that one of them was dates.
[Authentic hadith] - [Narrated by Bukhari & Muslim] - [Sahih Bukhari - 6455]

Explanation

The Mother of the Believers, ‘Ā’ishah (may Allah be pleased with her), reported that the members of the Prophet's (ﷺ) household never ate two full meals in a single day unless one of those two meals was dates.

Benefits from the Hadith

1. The humility of the Prophet (ﷺ) and his household, for sometimes they would not find more than one meal in a day.
2. Dates were more readily available to them than other foods.
3. The virtue of asceticism and contentment with little sustenance, and that it is among the morals of the prophets and the way of the Master of the Messengers.
4. Eating twice in a single day is among the permissible and allowed matters, and it was a known custom of the Arabs. They used to eat two meals a day: a lunch meal and a dinner meal.