ʿUyūn akhbār al-Riḍā
Hadith 133133 - وَبِهذَا الإِسنادِ عَنْ عَلِىِّ بْنِ أَبِي طالِبٍ عَلَيْهِالسَّلامُ قالَ: مَن أَكَلَ إِحدى وَعِشْرِينَ زَبِيبَةَ حَمراءَ عَلى الرِّيقَ لَمْ يَجِد فِي جَسَدَهِ شَيْئاً يَكرَهُهُ.
31-133 According to the same documentation, Ali ibn Abi Talib (a.s.) said, “Whoever eats twenty-one red raisins on an empty stomach will no longer find any ailments in his body.”