Shiva Purana
पौरुषे गुग्गुलं सव्ये सौम्ये सौगंधिकं मुखे ॥ ईशाने ऽपि ह्युशीरादि देयाद्धूपं विशेषतः ॥ ४३ ॥
In the masculine, guggulu is in the left, and in the gentle, fragrant in the mouth. Incense, especially incense such as hyushira, should be offered in the north-east.
english translation
pauruSe guggulaM savye saumye saugaMdhikaM mukhe ॥ IzAne 'pi hyuzIrAdi deyAddhUpaM vizeSataH ॥ 43 ॥
hk transliteration by Sanscript