Yusuf's Brothers try to deceive Their Father

Allah narrates to us the deceit that Yusuf's brothers resorted to, after they threw him to the bottom of the well. They went back to their father, during the darkness of the night, crying and showing sorrow and grief for losing Yusuf. They started giving excuses to their father for what happened to Yusuf, falsely claiming that,

إِنَّا ذَهَبْنَا نَسْتَبِقُ

As in verse 16: وَجَاءُوا أَبَاهُمْ عِشَاءً يَبْكُونَ They came weeping to their father at nightfall. Hearing the sound of their crying, Sayyidna Ya` qub (علیہ السلام) came out and asked: what has happened? Was the flock of your goats attacked by someone? And where is Yusuf?