ENOfficial
'Abdullah ibn Abi'l-Hudhayl said, "'Abdullah ibn Mas'ud went to visit a sick person with some other people. There was a woman in the room and one of the men began to look at her, 'Abdullah said to him, 'It would have been better for you if your eyes had been gouged out.'"
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا عَلِيُّ بْنُ حُجْرٍ، قَالَ: أَخْبَرَنَا عَلِيُّ بْنُ مُسْهِرٍ، عَنِ الأَجْلَحِ، عَنْ عَبْدِ اللهِ بْنِ أَبِي الْهُذَيْلِ قَالَ: دَخَلَ عَبْدُ اللهِ بْنُ مَسْعُودٍ عَلَى مَرِيضٍ يَعُودُهُ، وَمَعَهُ قَوْمٌ، وَفِي الْبَيْتِ امْرَأَةٌ، فَجَعَلَ رَجُلٌ مِنَ الْقَوْمِ يَنْظُرُ إِلَى الْمَرْأَةِ، فَقَالَ لَهُ عَبْدُ اللهِ: لَوْ انْفَقَأَتْ عَيْنُكَ كَانَ خَيْرًا لَكَ.
sunnah.com