Is the Sheikh's deduction that whoever repeats the Adhan after the Muezzin of the Haram will have a reward similar to that of whoever prayed with him in the Haram correct?

The hadith of Al-Bara' ibn Azib (may Allah be pleased with him) states that the muezzin is forgiven for the extent of his voice, and everything that hears him testifies for him, and he receives a reward like that of those who pray with him. Al-Albani authenticated it, but others deemed it weak.

As for whoever repeats the Adhan, he receives a reward similar to that of the muezzin, meaning in the principle of the reward, not in its specific manner or details, based on Al-Munawi's statement: "So he has a reward like his (the muezzin's) reward, meaning he has a reward just as the muezzin has a reward, and it does not necessitate their equality in quantity and quality." An example of this is what came in the hadith: "Indeed, the world is for four types of people," in which it states: "So their reward is equal."

Based on this, it cannot be said that whoever repeats the Adhan after the muezzin of the Haram receives a reward similar to that of those who prayed with him in the Haram. Rather, he receives a reward similar to that of the muezzin in terms of the principle of the reward, not its multiplication, assuming the authenticity of the hadiths mentioned in that regard.