12:80
فَلَمَّا ٱسْتَيْـَٔسُوا۟ مِنْهُ خَلَصُوا۟ نَجِيًّا ۖ قَالَ كَبِيرُهُمْ أَلَمْ تَعْلَمُوٓا۟ أَنَّ أَبَاكُمْ قَدْ أَخَذَ عَلَيْكُم مَّوْثِقًا مِّنَ ٱللَّهِ وَمِن قَبْلُ مَا فَرَّطتُمْ فِى يُوسُفَ ۖ فَلَنْ أَبْرَحَ ٱلْأَرْضَ حَتَّىٰ يَأْذَنَ لِىٓ أَبِىٓ أَوْ يَحْكُمَ ٱللَّهُ لِى ۖ وَهُوَ خَيْرُ ٱلْحَـٰكِمِينَ
So when they had despaired of him, they secluded themselves in private consultation. The eldest of them said, "Do you not know that your father has taken upon you an oath by Allah and [that] before you failed in [your duty to] Joseph? So I will never leave [this] land until my father permits me or Allah decides for me, and He is the best of judges.
Context in Surah Yusuf
Nearby ayahs help place verse 12:80 in sequence and meaning.
قَالُوا۟ يَـٰٓأَيُّهَا ٱلْعَزِيزُ إِنَّ لَهُۥٓ أَبًا شَيْخًا كَبِيرًا فَخُذْ أَحَدَنَا مَكَانَهُۥٓ ۖ إِنَّا نَرَىٰكَ مِنَ ٱلْمُحْسِنِينَ
They said, "O 'Azeez, indeed he has a father [who is] an old man, so take one of us in place of him. Indeed, we see you as a doer of good."
قَالَ مَعَاذَ ٱللَّهِ أَن نَّأْخُذَ إِلَّا مَن وَجَدْنَا مَتَـٰعَنَا عِندَهُۥٓ إِنَّآ إِذًا لَّظَـٰلِمُونَ
He said, "[I seek] the refuge of Allah [to prevent] that we take except him with whom we found our possession. Indeed, we would then be unjust."
ٱرْجِعُوٓا۟ إِلَىٰٓ أَبِيكُمْ فَقُولُوا۟ يَـٰٓأَبَانَآ إِنَّ ٱبْنَكَ سَرَقَ وَمَا شَهِدْنَآ إِلَّا بِمَا عَلِمْنَا وَمَا كُنَّا لِلْغَيْبِ حَـٰفِظِينَ
Return to your father and say, "O our father, indeed your son has stolen, and we did not testify except to what we knew. And we were not witnesses of the unseen,
وَسْـَٔلِ ٱلْقَرْيَةَ ٱلَّتِى كُنَّا فِيهَا وَٱلْعِيرَ ٱلَّتِىٓ أَقْبَلْنَا فِيهَا ۖ وَإِنَّا لَصَـٰدِقُونَ
And ask the city in which we were and the caravan in which we came - and indeed, we are truthful,"