ʿUyūn akhbār al-Riḍā

Hadith 150
food-drink
150 - وَبِهذَا الإِسنادِ عَنْ عَلِىِّ بْنِ أَبِي طالِبٍ‏ عَلَيْهِالسَّلامُ أَنَّهُ قالَ: كُلُوا الرُّمّانَ بِشَحمِهِ فَإِنَّهُ دِباغُ المِعدَةِ.
31-150 According to the same documentation, Ali ibn Abi Talib (a.s.) said, “Eat pomegranate seeds along with the white membrane for it cleanses the stomach."
Source: Shaykh Muḥammad b. ʿAlī al-Ṣaduq