Skandapurana 5.161.45

5.161.45

raktaiḥ puṣpairmahāvīra pādādyaṃ pūjayettataḥ ..
pataṃgāya namaḥ pādau mārtaṃḍāyeti jānunī .. 45 ..

With red flowers, O mighty hero, one should then worship beginning with the feet: / [saying] “Salutations to Pataṅga” for the feet, and “to Mārtaṇḍa” for the knees;