Supporting Imaan With Knowledge.
 

As-Salaam alaikum,

A Hadith ascribed to the Noble Prophet Muhammad, Sallallahu alaihi Wasallam:--

"The Support of the house is its foundation and the support of the faith [Imaan] is the knowledge
of Allah Most High, Certitude and a Restraining intelligence." When A'isha, may Allah be pleased
with her, asked the Prophet: "what is the restraining intelligence (al-'aql al-qami)"? He answered:
"Refraining from disobedience to Allah and eagerness to obey Him".


For further reading on this, see
Sayyadi al-Qushayri's "EPISTLE ON SUFISM".