Ramayana
तद्गतीवशमापन्ना मूर्तिमन्त इवाचलाः । यत्र यत्र च याति स्म रावणो राक्षसेश्वरः । जाम्बूनदमयं लिङ्गं तत्र तत्र स्म नीयते ॥ 7-31-41 ॥
Submissive, as it were, to his movement, like embodied mountains, wherever Ravana the lord of the Rakshasas went, there a linga made of gold was carried along with him.
english translation