Al-Ijl/ the Calf of Bani-Israeel
The link to above post reviews Ayahs related to the story of Bani Israeel clinging to a 'calf' to understand the real 'calf'.
The link to below post reviews from verses of Quran, what does the term ‘Bani Israeel’ mean as per character traits and description given in Quran:
Israeel and Bani Israeel