Sayyiduna Abu Hurayrah (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) disliked urinating in the open air.
Abu Ahmad said: The narration is mawdu' (fabricated).
Its narrator Yusuf bin al-Safar is matruk (abandoned).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 472