Surah Taha, ayah 91

20:91

قَالُواْ لَن نَّبۡرَحَ عَلَيۡهِ عَٰكِفِينَ حَتَّىٰ يَرۡجِعَ إِلَيۡنَا مُوسَىٰ ٩١

Qālū lan nabraha 'alayhi 'ākifīna hattā yarji'a ilaynā mūsā

They said, "We will never cease being devoted to it [i.e., the calf] until Moses returns to us."