It is narrated from a Companion (may Allah be pleased with him) that he saw the Prophet (peace and blessings be upon him) urinate, and before touching water, he recited some portions (or some verses) of the Noble Qur'an.
Hadith Referenceمسند احمد / مسند الشاميين / 18074
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد حسن