Quran As The Meezan Over Sunnah
Circumcision is Related to Purification of the Body which is mentioned in the Quran. Also Circumcision is mentioned in the Toraat. (Jewish Bible)
Also Please understand that only those Sunnat ibadaat have been mentioned in the Quran on which our Salvation depends upon in the Akhirat. And which are Essential Foundations of Deen e Islam. For example Namaz, Roza, Hajj , Zakat Etc. Other Minor Sunnats have not been mentioned as Human being could rationally derive their implication from the Quran for purification of Self(in my opinion). God Knows Best!
Thanks. I think I’m able to connect the dots now.