Al-Kāfi - Volume 6 > Al-Harisah (Mashed Grains and Meat)
Hadith #3

وَ فِي حَدِيثٍ آخَرَ رَفَعَهُ إِلَى أَبِي عَبْدِ اللَّهِ ( عليه السلام ) قَالَ إِنَّ رَسُولَ اللَّهِ ( صلى الله عليه وآله ) شَكَا إِلَى رَبِّهِ عَزَّ وَ جَلَّ وَجَعَ الظَّهْرِ فَأَمَرَهُ بِأَكْلِ الْحَبِّ بِاللَّحْمِ يَعْنِي الْهَرِيسَةَ .

3. In another Hadith in a marfu‘ manner the following is narrated: “Abu ‘Abd Allah, Alayhi al-Salam, has said that the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, complained before Allah, most Majestic, most Glorious, against back pain and He commanded him to eat grains with meat, that is, al-Harisah.”’