Samvartta Smriti 17

17

jale jalastha ācāmetsthalācānto bahiḥ śuciḥ
bahirantastha ācānta evaṃ śuddhimavāpnuyāt

In water, standing in water, one should sip water; on dry land, one who has sipped water outside is pure; / having sipped water, standing outside [on land] or inside [water], he thus attains purity.