What is the authenticity of this statement by Umar, "There is no Islam except with jama’ah"

I found the following saying of Umar RA , is this authentic and is it applicable even today? : >“There is no Islam except with jama’ah, and no jama’ah except with imarah (leadership), and no imarah except with ta’ah (obedience).” Also please let me know whether the saying is sahih hadith and is it even found in any reliable books and are there any other related hadith which support or refute this ? Also if possible give the context in which this was said.