The Compendium of Caraka 4.8.42

4.8.42

tasyāstu khalvaparāyāḥ prapatanārthe karmaṇi kriyamāṇe jātamātrasyaiva kumārasya kāryāṇyetāni karmāṇi bhavanti; tadyathā---aśmanoḥ saṃghaṭṭanaṃ karṇayormūle, śītodakenoṣṇodakena vā mukhapariṣekaḥ, tathā sa kleśavihatān prāṇān punarlabheta/

While the procedure for the delivery of that placenta is being performed, these procedures are to be carried out for the newly born boy: namely, striking two stones together near the roots of the ears, and sprinkling the face with cold water or warm water; thus he regains the vital breaths impaired by distress.