Shiva Purana
आचम्य विधिवत्पश्चाद्वारुणं स्नानमाचरेत् ॥ नद्यां वा देवखाते वा ह्रदे वाथ गृहे ऽपि वा ॥ ५ ॥
After performing Ācamana he shall take bath either in a river or in a pond or in an eddy or in the house itself.
english translation
Acamya vidhivatpazcAdvAruNaM snAnamAcaret ॥ nadyAM vA devakhAte vA hrade vAtha gRhe 'pi vA ॥ 5 ॥
hk transliteration by Sanscript