conflict between tradition and revelation

قَالُوا۟ يَـٰصَـٰلِحُ قَدْ كُنتَ فِينَا مَرْجُوًّا قَبْلَ هَـٰذَآ ۖ أَتَنْهَىٰنَآ أَن نَّعْبُدَ مَا يَعْبُدُ ءَابَآؤُنَا وَإِنَّنَا لَفِى شَكٍّ مِّمَّا تَدْعُونَآ إِلَيْهِ مُرِيبٍ

They said, "O Ṣāliḥ, you were among us a man of promise before this. Do you forbid us to worship what our fathers worshipped? And indeed we are, about that to which you invite us, in disquieting doubt."