[Jacob] said, "Indeed, it saddens me that you should take him, and (12:13)

﴿قَالَ إِنِّي لَيَحْزُنُنِي أَن تَذْهَبُوا بِهِ وَأَخَافُ أَن يَأْكُلَهُ الذِّئْبُ وَأَنتُمْ عَنْهُ غَافِلُونَ﴾
[ يوسف: 13]

12:13 [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."

Jacob said to his sons: I am saddened by your taking him because I cannot bear to be away from him.
I also fear that a wolf may eat him when you are not paying attention to him, absorbed in your enjoyment and play.

He [Ya'qub (Jacob)] said: "Truly, it saddens me that you should take him away. I fear lest a wolf should devour him, while you are careless of him."

phonetic Transliteration

Qala innee layahzununee an thathhaboo bihi waakhafu an yakulahu alththibu waantum AAanhu ghafiloona

Abdullah Yusuf Ali - Translation

(Jacob) said: "Really it saddens me that ye should take him away: I fear lest the wolf should devour him while ye attend not to him."

Safi-ur-Rahman al-Mubarakpuri

He (Ya`qub) said: "Truly, it saddens me that you should take him away. I fear lest a wolf should devour him, while you are careless of him."

Page 236 English transliteration