who recites the Book of God best; if they are equal in recitation, then the one most knowledgeable of the Sunnah; if they are equal in that, then the earliest of them in migration; if they are equal in migration, then the one who embraced Islam first. And no man is to lead another in prayer within the latter’s domain, nor sit in his place of honor in his house, except with his permission.”

This ḥadīth is unanimously graded sound, yet the scholars have differed over how it should be understood. Some—Abū Ḥanīfah foremost among them—take it at its plain, literal meaning.

Others read “the one who recites best” as “the one most learned in jurisprudence,” arguing that the community’s need for fiqh in an imām is greater than its need for mere proficiency in recitation. They add that among the Companions, the most gifted reciter was, of necessity, also the most knowledgeable in law—unlike the situation today.

Issue Two
The jurists disagreed about a boy who has not yet reached puberty yet is skilled in recitation: may he lead the prayer? Some allowed it, invoking the general sense of the aforementioned report and the ḥadīth of ʿAmr b. Salamah, who led his people in prayer while still a child.

Others disallowed it altogether, whereas a third group permitted it in voluntary prayers but not in the obligatory ones; this last view is related from Mālik.

The root of their dispute is whether someone upon whom the prayer is not yet obligatory may lawfully lead those upon whom it is obligatory, given the divergent intentions of imām and congregant.

Issue Three
They also differed over the leadership of an openly sinful person. Some rejected it outright; others allowed it unconditionally; and a third group distinguished between sin that is definitively established and sin that is merely alleged.

They said: if his sin is unquestionably proven, anyone who prays behind him must invariably repeat the prayer; but if it is only suspected, repeating the prayer within its time is recommended but not mandatory. This is the position selected by al-Abharī as an interpretation of the school.

Some scholars further distinguished between sin committed on the basis of an interpretive opinion and sin committed without any such warrant—such as one who drinks nabīdh while invoking the statements of the Iraqi jurists. They permitted prayer behind the former but not behind the latter.

Their disagreement arises because the Law is silent on the matter and analogy yields conflicting results. Those who note that sin per se does not nullify the correctness of a person’s own prayer—and who hold that all the congregant requires of his imām is the validity of that prayer—therefore allow a sinner to lead. Those who liken the imamate to bearing witness, and suspect that a sinner might perform a defective prayer just as he might lie in testimony, do not allow it. Hence some jurists distinguished between sin that stems from interpretation and sin that does not, and something of the same reasoning underlies the differentiation between sin that is established by proof and sin that is merely alleged: when the sin is established, no room remains for excusing it by interpretation.