Quran 23:103 from Surah Al-Muminoon on Divine Marvels.
وَمَنۡ خَفَّتۡ مَوَٰزِينُهُۥ فَأُوْلَٰٓئِكَ ٱلَّذِينَ خَسِرُوٓاْ أَنفُسَهُمۡ فِي جَهَنَّمَ خَٰلِدُونَ
English translation: But (the one) whose (are) light his scales then those they [who] have lost their souls in Hell they (will) abide forever
Transliteration: waman khaffat mawazinuhu fa-ulaika alladhina khasiru anfusahum fi jahannama khaliduna