Shiva Purana
अगम्यागमनं पापमभक्ष्यस्य च भक्षणम् । इत्यादिसर्वपापानि पंचवक्त्रो व्यपोहति 1-25-७० ।
A five-faced Rudrākṣa dispels all sorts of sins such as accrue from sexual intercourse with a forbidden woman and from eating forbidden food.
english translation
agamyAgamanaM pApamabhakSyasya ca bhakSaNam । ityAdisarvapApAni paMcavaktro vyapohati 1-25-70 ।
hk transliteration by Sanscript