1 verse has
“زَلَقًا”
in Edition Uthmani / Al-Kahf (The Cave)
40:18فَعَسَىٰ رَبِّىٓ أَن يُؤْتِيَنِ خَيْرًۭا مِّن جَنَّتِكَ وَيُرْسِلَ عَلَيْهَا حُسْبَانًۭا مِّنَ ٱلسَّمَآءِ فَتُصْبِحَ صَعِيدًۭا زَلَقًا
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Those who spend their wealth by night and day, privately and publicly, will receive their reward from their Lord. They have nothing to fear, nor shall they grieve.
The Holy Quran · Al-Baqara (The Cow) · 2:274