Sahih Muslim
The Book Concerning the Use of Correct Words
Hadith #19
40.19
وَحَدَّثَنِي أَبُو الطَّاهِرِ، وَحَرْمَلَةُ، قَالاَ أَخْبَرَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي يُونُسُ، عَنِ ابْنِ، شِهَابٍ عَنْ أَبِي أُمَامَةَ بْنِ سَهْلِ بْنِ حُنَيْفٍ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ يَقُلْ أَحَدُكُمْ خَبُثَتْ نَفْسِي . وَلْيَقُلْ لَقِسَتْ نَفْسِي " .
Abu Umama b. Sahl b. Hunaif, on the authority of his father, reported Allah's Messenger (ﷺ) as saying:None of you should say:" My soul has become evil," but he should say:" My soul has become remorseless