﴿ وَقُلْنَا يَٰٓـَٔادَمُ ٱسْكُنْ أَنتَ وَزَوْجُكَ ٱلْجَنَّةَ وَكُلَا مِنْهَا رَغَدًا حَيْثُ شِئْتُمَا وَلَا تَقْرَبَا هَٰذِهِ ٱلشَّجَرَةَ فَتَكُونَا مِنَ ٱلظَّٰلِمِينَ ﴾

“And We said: "O Adam, dwell thou and thy wife in this garden, and eat freely thereof, both of you, whatever you may wish; but do not approach this one tree, lest you become wrongdoers."”

Please check ayah 2:36 for complete tafsir.