Hakim al-Umma Shaykh Mawlana Shah Ashraf Ali Thanawi (Allah have mercy on him) said:
“Listen and remember, I tell this for your own benefit.
In this path (tareeq) two things are the worst rogue and the deadliest poison.
Firstly, making explanations for one’s mistakes and secondly, criticizing one’s instructor (the Sheikh).”
Maasir e Hakeemul Ummat 406