The Meaning of the Hadith: "Whoever Knows How to Stone but Then Abandons It..."

Question:
The first hadith: or Does he commit a sin if he forgets it?

Answer:
Yes, this means: he turned away from it until he forgot it. He should, from time to time, stone along with his brothers; they set up the target and stone it. For this reason, the Prophet (peace and blessings be upon him) encouraged stoning.
Q: Does this not indicate that abandoning stoning is a major sin?
The Shaykh: No, it does not necessarily mean it is a major sin. The sin does not necessarily have to be a major one. And some scholars hold that it is among the major sins, but this is a matter of consideration among the majority. The major sins, according to the majority, are those for which there is a warning of the Fire, a curse, or a fixed punishment in this world, such as the punishment for unlawful sexual intercourse or the punishment for theft. In any case, it is a sin, and it is sufficient that it is a sin.