The Shaykh’s explanation of the usul principle: “When two texts are in conflict, one being general and the other specific, the specific is excluded from the general.”

The Shaykh : And from this, a jurisprudential usul principle remains, which is: “When two texts are in conflict, one being general and the other specific, the specific is excluded from the general.”
In other words: if there is a general text, meaning it has a broad meaning, and there is another text with a narrow meaning, but this narrow meaning contradicts that general text in part of its parts, then in this case the lesser meaning is excluded from the greater meaning.
If we look at the hadith: Here, silk is mentioned in a general sense, so it includes both a little and a lot, with no difference between them, because it was generalized and not specified.
But in the hadith regarding the wearing of the Prophet (peace and blessings be upon him), there is a specific mention that the jacket was not made of silk; rather, the garment was a tawil, except that there was a piece of silk at the ends of the sleeves of this jacket, the size of a shibr (a standard measure of a shibr). This piece is silk, so this small amount of silk is excluded from the large amount of forbidden silk.
It is said, in the expression of the scholars: His statement (peace and blessings be upon him): is a general statement that includes all silk, whether much or little. But the small amount is excluded from this hadith that forbids wearing a small amount of silk; it is excluded from the prohibition of this text by the small amount in the hadith of the Prophet’s (peace and blessings be upon him) jacket, which had a small amount of silk on it.
It is said: Silk as a garment, a shirt, or a jacket is forbidden by the evidence of this general hadith. But it is not so if a man wears a garment of permissible fabric that has a piece of silk in it for the benefit of the garment, for example, here... the silk has resistance, so if this piece of silk is for preserving the garment from rapid decay and wear, then there is no harm in using this piece of silk in a worn-out garment.
As for the garment being entirely silk, that is forbidden by the text of this hadith and by other explicit hadiths forbidding silk for men, such as the well-known hadith:
So if we keep in mind this last hadith: and look at the text of the second hadith: meaning, the one who wears a silk jacket is one who has no share in the Hereafter.