Shiva Purana
बुद्ध्वेशानादिसद्यांतं पञ्चब्रह्ममयं शिवम् ॥ गृहीत्वा भसितं मन्त्रैर्विमृज्याङ्गानि संस्पृशेत् ॥ २९ ॥
Buddhveśāna, the beginning of the present, is the five-fold Brahman, Lord Śiva. Take the burnt object and wipe it with mantras and touch the limbs.
english translation
buddhvezAnAdisadyAMtaM paJcabrahmamayaM zivam ॥ gRhItvA bhasitaM mantrairvimRjyAGgAni saMspRzet ॥ 29 ॥
hk transliteration by Sanscript