It was narrated that Al-Mughirah bin Shu'bah said: "I proposed marriage to a woman during the time of the Messenger of Allah, and the Prophet said: 'Have you seen her?' I said: 'No.' He said: 'Look at her, for that is more likely to create love between you.'" (Using translation from Nasāʾī 3235)
خَطَبْتُ امْرَأَةً عَلَى عَهْدِ النَّبِيِّ ﷺ فَقَالَ النَّبِيُّ ﷺ «أَنَظَرْتَ إِلَيْهَا؟» قُلْتُ لَا قَالَ «فَانْظُرْ إِلَيْهَا فَإِنَّهُ أَجْدَرُ أَنْ يُؤْدَمَ بَيْنَكُمَا»