What is the ruling on pride and boasting about Islam? And does it fall under self-admiration (ʿujb)?

Pride in Islam, if intended as joy in Allah's bounty, speaking of it, thanking Him for it, and showing humility towards Him, is praiseworthy and permissible; based on His saying: "But as for the favor of your Lord, report [it]." However, if it is intended as arrogance towards creation, self-admiration, and attributing the bounty to oneself, then it is blameworthy; because acknowledging Allah's blessings is an obligation, and denying them is an act of disbelief. The Prophet (peace be upon him) clarified this by saying: "I am the master of the children of Adam, and no boast," and "I am the most eloquent of Arabs, and no boast," to confirm that his reporting was not for blameworthy boasting. He also forbade self-praise and commendation in faces, because that could lead to arrogance or showing off. Praiseworthy boasting is the manifestation of blessings as a way of magnifying them and encouraging them, not out of haughtiness or showing off.