Shiva Purana
क्षिपेद्वाप्सु शिवास्वेव त्यजेद्वा काष्ठलोष्टवत् ॥ अथैनमपि चोद्दिश्य कर्म चेत्कर्तुमीप्सितम् ॥ ५९ ॥
One should throw it into the water as if it were auspicious or leave it like a lump of wood. Then if you wish to perform an action with this in mind.
english translation
kSipedvApsu zivAsveva tyajedvA kASThaloSTavat ॥ athainamapi coddizya karma cetkartumIpsitam ॥ 59 ॥
hk transliteration by Sanscript