[46] And His glory is mighty said: Allah has no secret except that it is upon the tongues of His creation, and He has no fortress more defensive than their ignorance of it; so whoever makes the enemies of Allah know the secret of Allah has contravened His command.

[47] And His glory is mighty said: Our knowledge is a concealed secret, masked with secrecy, so whoever understands anything of that and broadcasts it or teaches it to the ignorant, intending opposition thereby, has violated the secret of Allah, and whoever violates the secret of Allah, Allah will make him taste the heat of iron and its cold.

[48] And His glory is mighty said: Its denier is a doubter, and its utterer in the presence of other than its people is a disbeliever.

[49] And His glory is mighty said: Revealing the secret of Lordship is disbelief.

And the master of the Sufis, Hasan Al-Shayrani, said in the Admonition:

Safeguard their secret if you seek their union

For the enviers of the union are many

And preserve your dignity if you stand at their door

For the door, of its manners, is veneration