Shiva Purana
समुद्रं पर्वतवनं जंगमाजंगमैर्वृतम्॥ श्राद्धानि पुष्टिकामैश्च ये करिष्यंति मानवाः॥ ५६॥
The sea is a forest of mountains surrounded by movable and immovable things Those men who will perform shraddhas for the sake of nourishment.
english translation
samudraM parvatavanaM jaMgamAjaMgamairvRtam॥ zrAddhAni puSTikAmaizca ye kariSyaMti mAnavAH॥ 56॥
hk transliteration by Sanscript