Joseph
قَالَ إِنِّى لَيَحْزُنُنِىٓ أَن تَذْهَبُوا۟ بِهِۦ وَأَخَافُ أَن يَأْكُلَهُ ٱلذِّئْبُ وَأَنتُمْ عَنْهُ غَـٰفِلُونَ
[Jacob] said, "Indeed, it saddens me that you should take him, and I fear that a wolf would eat him while you are of him unaware."
Nearby ayahs help place verse 12:13 in sequence and meaning.
قَالُوا۟ يَـٰٓأَبَانَا مَا لَكَ لَا تَأْمَ۫نَّا عَلَىٰ يُوسُفَ وَإِنَّا لَهُۥ لَنَـٰصِحُونَ
They said, "O our father, why do you not entrust us with Joseph while indeed, we are to him sincere counselors?
أَرْسِلْهُ مَعَنَا غَدًا يَرْتَعْ وَيَلْعَبْ وَإِنَّا لَهُۥ لَحَـٰفِظُونَ
Send him with us tomorrow that he may eat well and play. And indeed, we will be his guardians.
قَالُوا۟ لَئِنْ أَكَلَهُ ٱلذِّئْبُ وَنَحْنُ عُصْبَةٌ إِنَّآ إِذًا لَّخَـٰسِرُونَ
They said, "If a wolf should eat him while we are a [strong] clan, indeed, we would then be losers."
فَلَمَّا ذَهَبُوا۟ بِهِۦ وَأَجْمَعُوٓا۟ أَن يَجْعَلُوهُ فِى غَيَـٰبَتِ ٱلْجُبِّ ۚ وَأَوْحَيْنَآ إِلَيْهِ لَتُنَبِّئَنَّهُم بِأَمْرِهِمْ هَـٰذَا وَهُمْ لَا يَشْعُرُونَ
So when they took him [out] and agreed to put him into the bottom of the well... But We inspired to him, "You will surely inform them [someday] about this affair of theirs while they do not perceive [your identity]."