मूत्रश्लेष्माशनः पाप निरयं प्रतिपत्स्यसे –– ओ पापी , तू मूत्र और लार खानेवाला कीडा होकर नरक मे पडेगा ।
This curse was given by Brighu rishi to an Asura who kidnapped his wife, in Satyuga. In later Dwapar Yuga, the same Asura was born as insect called as ‘अलर्क ‘
This insect than bite Karna ( कर्ण ) on his thigh when rishi Parshurama (परशुराम) was sleeping on Karna’s lap.