Al-Kāfi #2119“Abu ‘Abd Allah (a.s.), has said, ‘The amount of beard that you must keep is what comes in inside your fist and you must clip off whatever...
Man Lā Yaḥḍuruh al-Faqīh #312Hadith.314 - Imam Jafar ibn Muhammad Al-Sadiq (as) said: " Trim it when it grows long."
Al-Kāfi #2126“Abu ‘ Abd Allah (a.s.), has said, ‘Whatever of beard exceeds the fist is in the fire.’”