Does letting the garment hang below the ankles invalidate the prayer?

Question:
May Allah reward you and bless you. One of his questions says: Shaykh Salih, if a person prays while letting his garment hang below the ankles, is the prayer invalidated in such a case?

Answer:
The prayer is not invalidated, but he commits a sin. He commits a sin regarding letting the garment hang below the ankles, and letting the garment hang below the ankles is a major sin among the major sins, because the Prophet (peace and blessings be upon him) threatened with it, saying: “What is below the ankles is in the Fire.” He (peace and blessings be upon him) said: or it is a major sin among the major sins. But if he prays while letting his garment hang below the ankles, he is rewarded for the prayer, and he commits a sin for letting the garment hang below the ankles. Yes.