ʿUyūn akhbār al-Riḍā
Hadith 8282 - وَبِهذَا الإِسنادِ قالَ: قالَ رَسُولُ اللَّهِ صَلَّى اللهُعَلَيْهِ وَآلِهِ: كُلُوا العِنَبَ حَبَّةً حَبَّةً فَإِنَّهُ أَهنَأ وَأَمرَءُ.
31-82 According to the same documentation, God’s Prophet (S) said, “Eat grapes one by one, for it is more wholesome and easier."