Hazrat Aisha (may Allah be pleased with her) narrated that the Prophet Muhammad (peace and blessings be upon him) said, "None of you should say, 'My soul has become impure.' Rather, he should say, 'My heart has become corrupted or disturbed.'"
Hadith Referenceاللؤلؤ والمرجان / كتاب الألفاظ من الأدب وغيرها / 1452
Hadith Gradingمحدثین:«صحیح»
Hadith Takhrij«صحیح، أخرجه البخاري في: 78 كتاب الأدب: 100 باب لا يقل خبثت نفسي»