wa ʿalaikum al-salām wa raḥmatullāhi wa barakātuh
According to the madhhab of imam Shafiʿi, allowing one's garment to drag below the ankles is ḥarām if done out of arrogance, and makrūh if not done out of arrogance. This ruling is specific to men only.
Allah knows best.
Answered by Shaykh Omar Mohsin