Sunan an-Nasa'i 434b

Muhammad ibn ‘Abd al-A‘la informed us; Umayyah ibn Khalid informed us; Shu‘bah narrated to us that Mukhariq informed them, from Tariq ibn Shihab, that a man became junub and did not pray. He came to the Prophet ﷺ and told him about it, and he said: “You did the right thing.” Then another man became junub, performed tayammum, and prayed. He came to him, and the Prophet said to him something like what he had said to the other man—that is, “You did the right thing.”