Ash-Shu'ara' - 26:74

قَالُوا بَلْ وَجَدْنَا آبَاءنَا كَذَلِكَ يَفْعَلُونَ
[26:74]
They said: Nay, we found our fathers doing so.
They said: "Nay, but we found our fathers doing thus (what we do)."
They said: Nay, but we found our fathers acting on this wise.