Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:13566Abū Zakariyyā b. Abū Isḥāq > Abū al-ʿAbbās al-Aṣam > Baḥr b. Naṣr > Ibn Wahb > ʿAbd al-Raḥman b. Salmān > ʿAmr a freed slave of al-Muṭṭalib > al-Ḥasan > Balaghanī

[Machine] That the Messenger of Allah ﷺ said, "May Allah curse the one who looks at and the one who is looked at. Indeed, this is a form of adultery, and Allah, exalted be He, knows best."  

البيهقي:١٣٥٦٦أَخْبَرَنَا أَبُو زَكَرِيَّا بْنُ أَبِي إِسْحَاقَ ثنا أَبُو الْعَبَّاسِ الْأَصَمُّ ثنا بَحْرُ بْنُ نَصْرٍ ثنا ابْنُ وَهْبٍ أَخْبَرَنِي عَبْدُ الرَّحْمَنِ بْنُ سَلْمَانَ عَنْ عَمْرٍو مَوْلَى الْمُطَّلِبِ عَنِ الْحَسَنِ قَالَ بَلَغَنِي

أَنَّ رَسُولَ اللهِ ﷺ قَالَ لَعَنَ اللهُ النَّاظِرَ وَالْمَنْظُورَ إِلَيْهِ هَذَا مُرْسَلٌ وَاللهُ سُبْحَانَهُ أَعْلَمُ