Appears 4 times in the Quran.
He said: So surely We have tried your people after you, and the Samiri has led them astray.
20:87 قَالُوا۟ مَآ أَخْلَفْنَا مَوْعِدَكَ بِمَلْكِنَا وَلَٰكِنَّا حُمِّلْنَآ أَوْزَارًا مِّن زِينَةِ ٱلْقَوْمِ فَقَذَفْنَٰهَا فَكَذَٰلِكَ أَلْقَى ٱلسَّامِرِىُّ
They said: We did not break (our) promise to you of our own accord, but we were made to bear the burdens of the ornaments of the people, then we made a casting of them, and thus did the Samiri suggest.
He said: What was then your object, O Samiri?
In arrogance; talking nonsense about the Quran, and left him like one telling fables by night.