And through this chain of narration, from Hammad, from Hariz, from Ibn Bukayr, from Abu Abdullah عليه السلام, said:
Imam عليه السلام said: 'There is no harm in urinating in running water.'
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 46