Shaikh Raajihi was asked the following question:

Question:

Some people play with their beards sometimes, then some hair falls from it. Is there a sin upon them because of that?

Answer:

The falling of dead hair does not harm when showering and when making wudu. However, it is necessary for a person not to play [with his beard] deliberately. May Allah facilitate everyone towards his obedience.

[Reference]

Translated by

Faisal Ibn Abdul Qaadir Ibn Hassan
Abu Sulaymaan