And when they entered upon Joseph, he took his brother to himself; (12:69)

Almuntakhab Fi Tafsir Alquran Alkarim

When they came to where Yusuf was, he took his full brother -Benjamin- by his side, and in a manner designed to escape observation, he declared to him his identity and actuated him with the feeling of confidence and said to him: Do not grieve at heart over what their minds and souls had impelled them to do

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(12:69) When they presented themselves before Joseph he called his brother alone to himself and said to him "I am the same brother of yours (who was lost). Now you need not grieve for what they have been doing." *55

And when they entered upon Joseph, he took his brother to himself; meaning

*55) The whole story of their reunion after a separation of twenty years or so has been summed up in this brief sentence. In all probability Prophet Joseph aught have told him the story of the vicissitudes that ultimately had led to his high rank, and Benjamin in his turn might have related the story of the iII-treatment of the heartless step-brothers. Then Prophet Joseph might have reassured him that Ire would not be allowed to go back with them but remain with him. It is also possible that the plan to retain him there, without disclosing the secret of Prophet Joseph's identity, would have then been thought out and decided upon.
 

And when they entered upon Joseph, he took his brother to himself; meaning in Urdu

یہ لوگ یوسفؑ کے حضور پہنچے تو اس نے اپنے بھائی کو اپنے پاس الگ بلا لیا اور اسے بتا دیا کہ "میں تیرا وہی بھائی ہوں (جو کھویا گیا تھا) اب تو اُن باتوں کا غم نہ کر جو یہ لوگ کرتے رہے ہیں"