Abu Wa'il narrates: Sayyiduna Abu Musa Ash'ari (may Allah be pleased with him) used to be extremely strict regarding the matter of urine. He used to say: If any person from the Children of Israel got urine on his skin, he would cut it off with scissors. Sayyiduna Hudhaifah (may Allah be pleased with him) said: I wished that your companion (i.e., Sayyiduna Abu Musa Ash'ari, may Allah be pleased with him) would not be so strict in this matter, because I remember this about myself: I and the Prophet Muhammad (peace and blessings be upon him) were walking together. The Prophet (peace and blessings be upon him) came to a garbage heap behind a garden and stood in the way that any one of you would stand. He urinated. The narrator says: I made a screen for him, so he gestured towards me. I moved forward and stood behind him until he finished.
Hadith Referenceصحیح ابن حبان / كتاب الطهارة / 1429
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح: ق.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرطهما.