How Teachers Must Be with Students
Shaikh Ṣāliḥ Al-Fawzān, may Allāh protect him, said:
A teacher must behave kindly and gently with students, pray for them, and [do things to] make them want [to learn], for indeed, this is from the greatest means of teaching. He must not come across to them with harshness, severity, and lack of compassion because this turns [people] away from knowledge.
Sharḥ Al-Uṣūl Al-Thalāthah, p. 39.