'Aishah (May Allah be pleased with her) said:
The Prophet (ﷺ) said, "None of you should say: 'My soul has become evil.' He should say: 'My soul is in bad shape."'[Al-Bukhari and Muslim]. (DE)
App reference (DE): Book 18, Hadith 229 (DE)
Arabic/English book reference (DE): Book 18, Hadith 1739 (DE)