Musannaf Ibn Abi Shayba 1:1277

Ghundar narrated to us, from Shu'bah, from al-Hakam, regarding a man whose garment was struck by urine and it became hidden from him. He said: "He should sprinkle water over it." Shu'bah said: And 'Abd al-Khaliq informed me, from Hammad, that he said: "He should sprinkle water over it." And I asked Ibn Shubruma, and he said: "He should seek out that place and wash it."