al-Isrāʾ 17:82

Wa nunazzilu mina'l-qurʾāni mā huwa shifāʾun wa raḥmatun li'l-muʾminīn, wa lā yazīdu'l-ẓālimīna illā khasārā

"We send down of the Qurʾān what is a healing and a mercy for the believers. For the wrongdoers it increases nothing but loss."

This verse repeats the principle treated at 2/26 in al-Baqara, and it was recorded there:

The text is one. The outcomes are two. What produces the difference between them is not the text but the reader's way of approaching it.

I rely on that treatment.

And the choice of word in al-Isrāʾ must be recorded: shifāʾ.

The root ش-ف-ي: to recover from illness; and to come to the edge of a thing (shafā — the edge of a cliff). The lexicographers record both branches: to be healed is to arrive at a threshold.

I record this as an observation about the language: the choice of the word places the one addressed as sick — not as ignorant or uninformed. A healing is not the completing of something missing but the setting right of something that has gone wrong.

A record required by the method: no medical conclusion is drawn from this verse. The verse speaks of the relation between a text and the one who reads it; the figurative use of the word is widespread in Arabic.

This pattern comes for the fourth time in the sūra:

The same pattern (mā/lā yazīdu … illā) four times in the sūra. This is a weave that can be verified within the sūra.

And the difference in the eighty-second verse must be recorded: here the subject is ẓālimīn — that is, an attribute. Per the method this record matters: the ruling is tied not to a group but to an attribute.