Once Shaykh Ibrahim bin Adham رحمة الله عليه saw a stone with the inscription;
Turn me over and read!
When he did an inscription appeared;
You do not practice what you know. Why do you seek what you do not know?
– Shaykh Data Ganj Baksh Ali al-Hujwiri رحمة الله عليه in Kashf al-Mahjoob –