وَعَنِ الْحَسَنِ مُرْسَلًا
قَالَ: بَلَغَنِي أَنَّ رَسُولَ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «لَعَنَ اللَّهُ النَّاظِرَ وَالْمَنْظُورَ إِلَيْهِ»
Al-Hasan told in mursal form that he heard God’s Messenger had said, “God curse the one who looks and the one who is looked at!” Baihaqi transmitted it in Shuab al-iman.
Mishkat al-Masabih 3001, Book 14, Marriage, Hadith 46. 1 min read