Who has more right to be the imam for the prayer? Is it the young boy who has not reached puberty but he has (memorized) half of the Quran or is it the adult who has (memorize) five juz (of Quran) but he also has (knowledge) from the sunnah just as Aqeedah (belief), hadeeth and fiqh? May Allaah keep you firm.
The oldest is more preferable as long as he has from the Quran what suffices for the prayer. He is preferred over the young. Only if the young is the most proficient in Quran amongst the others present then he is put forth.
Al-Binaa Publishing | Durham NC
Translated: Abu Anas Atif Hasan