The Source of Traditions on Imam al-Riḍā (Vol 2) · Hadith 129 (#Ḥadīth #129)

129 - وَبِهذَا الإِسنادِ عَنْ عَلِىِّ بْنِ أَبِي طالِبٍ عَلَيْهِالسَّلامُ قالَ: عَلَيْكُمْ بِاللَّحمِ، فَإِنَّهُ يُنبِتُ اللَّحْمَ، وَمَن تَرَكَ اللَّحْمَ أَرْبَعِينَ يَوْماً ساءَ خُلقَهُ.

31-129 According to the same documentation, Ali ibn Abi Talib said, “I advise you to eat meat since it will strengthen your muscles. Whoever abstains from eating meat for forty days will get bad-tempered.”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).