Shiva Purana
नासाग्रे वा तथास्ये वा कन्धरे हृदये तथा ॥ नाभौ वा शाश्वतस्थाने श्रद्धाविद्धेन चेतसा ॥ ५९ ॥
At the tip of the nose, on the cheeks, on the neck and on the heart Or in the navel, in the eternal place, with a mind fixed in faith.
english translation
nAsAgre vA tathAsye vA kandhare hRdaye tathA ॥ nAbhau vA zAzvatasthAne zraddhAviddhena cetasA ॥ 59 ॥
hk transliteration by Sanscript