Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 24
Sanskrit:
निशातमसिमुद्यम्य सकिरीटं सकुण्डलम् ।शम्बरस्य शिर: कायात् ताम्रश्मश्र्वोजसाहरत् ॥ २४ ॥
ITRANS:
niśātam asim udyamyasa-kirīṭaṁ sa-kuṇḍalamśambarasya śiraḥ kāyāttāmra-śmaśrv ojasāharat
Translation:
Drawing His sharp-edged sword, Pradyumna forcefully cut off Śambara’s head, complete with red mustache, helmet and earrings.