It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The screen between the eyes of the jinn and the private parts of the children of Adam, when they take off their clothes, is that they say: 'Bismillah' (that is, 'In the name of Allah')."
Imam al-Tabarani (may Allah have mercy on him) said: "Only Hajjaj narrated this hadith from Ibrahim."
Hadith Referenceالمعجم الأوسط / باب الألف / 2504
Hadith Takhrij«أخرجه الطبراني فى «الأوسط» برقم: 7066»