Vaishnava Dharmashastra 22.77

22.77

nābher adhastāt prabāhuṣu ca kāyikair malaiḥ surābhir madyaiś copahato mṛttoyais tadaṅgaṃ prakṣālya śudhyet ||

If the lower part of his body, below the navel, or one of his fore-arms, has been defiled by one of the impure excretions of the body, or by one of the spirituous liquors or of the intoxicating drinks (hereafter mentioned), he is purified by cleansing the limb in question with earth and water.