SB 6.1.32

ūcur niṣedhitās tāṁs te
 vaivasvata-puraḥsarāḥ
ke yūyaṁ pratiṣeddhāro
 dharma-rājasya śāsanam
Synonyms: 
ūcuḥ — replied; niṣedhitāḥ — being forbidden; tān — to the order carriers of Lord Viṣṇu; te — they; vaivasvata — of Yamarāja; puraḥ-sarāḥ — the assistants or messengers; ke — who; yūyam — all of you; pratiṣed-dhāraḥ — who are opposing; dharma-rājasya — of the king of religious principles, Yamarāja; śāsanam — the ruling jurisdiction.
Translation: 
When the order carriers of Yamarāja, the son of the sun-god, were thus forbidden, they replied: Who are you, sirs, that have the audacity to challenge the jurisdiction of Yamarāja?
Purport: 

According to the sinful activities of Ajāmila, he was within the jurisdiction of Yamarāja, the supreme judge appointed to consider the sins of the living entities. When forbidden to touch Ajāmila, the order carriers of Yamarāja were surprised because they had never been hindered in the execution of their duty by anyone within the three worlds.