Sura Yūsuf 12:19

وَجَآءَتْ سَيَّارَةٌ فَأَرْسَلُوا۟ وَارِدَهُمْ فَأَدْلَىٰ دَلْوَهُۥ قَالَ يَٰبُشْرَىٰ هَٰذَا غُلَٰمٌ وَأَسَرُّوهُ بِضَٰعَةً وَٱللَّـهُ عَلِيمٌۢ بِمَا يَعْمَلُونَ

wa-jāʾat sayyāratun fa-arsalū wāridahum fa-adlā dalwahu qalā yābushra hādhā ghulāmun wa-asarrūhu biḍāʿatan wallāhu ʿalīmun bi-mā yaʿmalūna

Then there came a caravan of travellers: they sent their water-carrier (for water), and he let down his bucket (into the well)...He said: "Ah there! Good news! Here is a (fine) young man!" So they concealed him as a treasure! But Allah knoweth well all that they do!