Shiva Purana
एकमेवाथ वा कुंभं मूर्तिमन्त्रसमन्वितम् ॥ न्यस्य पद्मांतरे सर्वं शेषं पूर्ववदाचरेत् ॥ ५७ ॥
Or only one vessel shall be placed with the basic mantra and everything fixed therein. Every other rite shall be performed as before.
english translation
ekamevAtha vA kuMbhaM mUrtimantrasamanvitam ॥ nyasya padmAMtare sarvaM zeSaM pUrvavadAcaret ॥ 57 ॥
hk transliteration by Sanscript