Could you share Hadith narrations that affirm the happiness of Ahl al-Bayt (as) when their merits, virtues, and teachings are recited and propagated through Majalis?
There are many authentic narrations in this regard. Ahlul Bayt (AS) encouraged their followers to mention their truth , merits and virtues. Imam Ja'far Al-Sadiq (AS) said: Keep our truth alive. May Allah bestow His Mercy on every one who keeps our truth alive among peopleأحيوا أمرنا رحم الله من أحيا أمرنا . Biharul Anwaar, V. 44, page 282.
Wassalam.