Hadith 2251
Chapter 4: It Is Disliked For A Man To Say: "Khabuthat Nafsi" (I Feel Bad) - كتاب الألفاظ من الأدب وغيرها
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."
Reference : Sahih Muslim 2251
In-book reference : Book 40, Hadith 19
USC-MSA web (English) reference : Book 27, Hadith 5597