As for the response to the evidence cited by those who hold the first view from the Prophet’s statement (peace and blessings be upon him), “The imam has only been appointed to be followed, so do not oppose him” (1), they are the first to undermine their own use of this hadith as evidence. For they permit a person to offer a current prayer behind one who is making up a missed prayer, and this is a difference. They also permit one offering a voluntary prayer to pray behind one offering an obligatory prayer, and this too is a difference. This makes it clear that the hadith does not refer to a difference in intention. Hence, the Prophet (peace and blessings be upon him) said, “Do not oppose him,” rather than, “Do not differ from him, such that you intend something other than what he intends.” There is a difference between the two expressions.
When it is said, “Do not oppose so-and-so,” the intended meaning of opposition is disobedience, as when it is said: “Do not oppose the ruler”—that is, do not defy him or go against him in what he commands you to do of what is right. The Prophet (peace and blessings be upon him) explained what it means not to oppose the imam when he said: “When he pronounces the takbir, then pronounce the takbir; when he bows, then bow …” (2), and so on to the end of the hadith.
Thus, what is meant by his statement, “Do not oppose him,” is: do not differ from him in your actions.
As for their statement that, if the follower is offering an obligatory prayer while the imam is offering a voluntary prayer, then the follower’s prayer is of a higher rank than the imam’s prayer and is therefore invalid, the response is: Who established this principle in the first place?
The hadith of Amr ibn Salamah al-Jurami indicates that it is valid for one offering the higher prayer to follow one offering the lower prayer: his people were praying the prayer as an obligation, while he was praying it voluntarily (3). Thus, this principle is not conceded. For this reason, we previously held to be valid that one able to perform the essential pillars of the prayer may pray behind one unable to perform them, as established by the sunnah in