Laughing During Classes

Once a student laughed while Hadhrat A’mash Rahmatullah alaih was imparting lessons. Hadhrat A’mash severely reprimanding the student, said:

“You are pursuing that Knowledge which Allah Ta’ala has commanded you, but you laugh.”

He then expelled the student and severed ties with him. For two months, Hadhrat A’mash did not speak with this
student.