It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) in a marfu' form that the Messenger of Allah (peace and blessings be upon him) said: "There is no one more possessed of ghayrah (protective jealousy) than Allah, and for that reason He has forbidden indecencies, whether apparent or hidden."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10403