Devibhagavatapurana 11.15.85

11.15.85

daśāṅgulipramāṇaṃ tu uttamottamamucyate |
navāṅgulaṃ madhyamaṃ syādaṣṭāṅgulamataḥ param ||

The Ûrdhapundra, ten Angulis high is the super best; nine Angulis high, is best; eight Angulis high, is good; the middling Ûrdhapundra is of three kinds as it is of seven Angulas, six Angulas, or five Angulas. The lowest Ûrdhapundra is again of three kinds as it is four Angulas, three Angulas or two Angulas high. On the Ûrdhapundra of the forehead, you must meditate Kes’ava, on the belly you must think of Nârâyana; on the heart, you must meditate on Mâdhava; and on the neck, you must meditate on Govinda. So on the right side of the belly, you must meditate on Madhûsûdana; on the roots of the ears, on Trivikrama; on the left belly, on Vâmana; on the arms, on S’rîdhara; on the ears, Hrisîkes’a; on the back, Padmanâbha; on the shoulders Dâmodara; and on the head Brahmarandhra you must meditate on Vâsudeva. Thus the twelve names are to be meditated. In the morning or in the evening time when you are going to make the Pûjâ or Homa, you are to take duly, single-in-intent, the above names and make the marks of Ûrdhapundras. Any man, with Ûrdhapundra on his head, is always pure, whether he be impure, or of unrighteous conduct or whether he commits a sin mentally. Wherever he dies, he comes to My Abode even if he be of a Chândâla caste. My devotees ( Vîra Vaisnavas or Mahâvîra Vaisnavas) who know My Nature must keep an empty space between the two lines of Ûrdhapundra of the form of the Visnupada (the feet of Visnu) and those who are my best devotees are to use nice Ûrdhapundras, made of turmeric powder, of the size of a spear (S’ûla), of the form of the feet of Visnu (Visnu padah).