The governor, who stated this on Saturday Morning via a twitter broadcast, said the measure was necessary as family members and senior government officials around him tested positive for COVID-19.
El-Rufai said he is in self-isolation as a precaution pending a COVID-19 test to be conducted on Sunday.
The governor had earlier tested positive for the virus in March but recovered after some weeks.
In a related development, Lagos State Governor, Babajide Sanwo-Olu, has also gone into isolation following reported cases of positive COVID-19 cases recorded by persons close to him.
MALAM NASIR @ELRUFAI HAS BEEN NOTIFIED OF MORE POSITIVE COVID-19 TEST RESULTS OF PERSONS CLOSE TO HIM, INCLUDING AN IMMEDIATE FAMILY MEMBER AND SENIOR OFFICIALS OF THE KADUNA STATE GOVERNMENT.
AS A PRECAUTION, HE IS IN SELF-ISOLATION PENDING A TEST BY SUNDAY. PIC.TWITTER.COM/22QURKYGQJ
— GOVERNOR KADUNA (@GOVKADUNA) DECEMBER 11, 2020