Mahabharata 7.91.26

शिरसा धारयन्दीप्तां तपनीयमयीं स्रजम्उरसा धारयन्निष्कं कण्ठसूत्रं च भास्वरम्

śirasā dhārayandīptāṃ tapanīyamayīṃ srajamurasā dhārayanniṣkaṃ kaṇṭhasūtraṃ ca bhāsvaram

Our plain-language meaning of this verse is waiting for scholar review.