1 verse has
“ثلاثين”
in Edition Simple Clean / Al-A'raaf (The Heights)
142:7۞ وواعدنا موسى ثلاثين ليلة وأتممناها بعشر فتم ميقات ربه أربعين ليلة ۚ وقال موسى لأخيه هارون اخلفني في قومي وأصلح ولا تتبع سبيل المفسدين
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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