Skandapurana 16.256.5

16.256.5

.. devyuvāca .. ..
kimasau rogavānrājā sārvabhaumo mahīpatiḥ ..
tasya dharmaratasyāpi kasmādroga samudbhavaḥ .. 5 ..

The Goddess said:
“Why did that king, a universal monarch, ruler of the earth, become diseased? / Even though he was devoted to dharma, why did disease arise in him?”