﴿ وَلَا تَمُدَّنَّ عَيْنَيْكَ إِلَىٰ مَا مَتَّعْنَا بِهِۦٓ أَزْوَٰجًۭا مِّنْهُمْ زَهْرَةَ ٱلْحَيَوٰةِ ٱلدُّنْيَا لِنَفْتِنَهُمْ فِيهِ ۚ وَرِزْقُ رَبِّكَ خَيْرٌۭ وَأَبْقَىٰ ﴾

“And never turn thine, eyes [with longing] towards whatever splendour of this world's life We may have allowed so many others to enjoy in order that We might test them thereby: for the sustenance which thy Sustainer provides [for thee] is better and more enduring.”

Please check ayah 20:132 for complete tafsir.