How is the Hadith of the one who prays badly to be understood, in which the Prophet (peace and blessings be upon him) taught duties [wājibāt] over pillars [arkān], and how can one refute the Hanbalis’ reasoning, and is the wording in the Hadith an addition that is not considered because it was not narrated in the Two Sahihs?

The jurists mentioned that the Hadith (definition) of the one who prayed badly is evidence for the obligation of what was mentioned in it, and the non-obligation of what was not mentioned, because it was a situation of teaching and clarification, and it indicates the confinement of obligations. The Hanbalis responded that the Hadith does not negate the obligation of what it was silent about, and that the Prophet, peace and blessings be upon him, did not teach the one who prayed badly all the obligations because he did not perform them badly, or because they were enjoined later, or he referred their knowledge to the companions' observation of his prayer or their teaching one another. The Hadith does not contradict the clear evidence for the obligation of the remaining pillars.