question #3 Sahih al-Bukhari 841, Book 10, Hadith 233 : What significance does reciting praises aloud hold in Islamic tradition after prayers?

(the freed slave of Ibn `Abbas) Ibn `Abbas told me, “In the lifetime of the Prophet (ﷺ) it was the custom to
celebrate Allah’s praises aloud after the compulsory congregational prayers.” Ibn `Abbas further said,
“When I heard the Dhikr, I would learn that the compulsory congregational prayer had ended.”