Mahabharata 12.226.17

रन्तिदेवश्च सांकृत्यो वसिष्ठाय महात्मनेअपः प्रदाय शीतोष्णा नाकपृष्ठे महीयते

rantidevaśca sāṃkṛtyo vasiṣṭhāya mahātmaneapaḥ pradāya śītoṣṇā nākapṛṣṭhe mahīyate

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