The Prophet ﷺ said, "None of you should say Khabuthat Nafsi, but he is recommended to say 'Laqisat Nafsi."  

عَنِ النَّبِيِّ ﷺ قَالَ لاَ يَقُولَنَّ أَحَدُكُمْ خَبُثَتْ نَفْسِي وَلَكِنْ لِيَقُلْ لَقِسَتْ نَفْسِي  

The Prophet ﷺ said, "None of you should say Khabuthat Nafsi but he is recommended to say 'Laqisat Nafsi (See Hadith No. 202)  

عَنِ النَّبِيِّ ﷺ قَالَ لاَ يَقُولَنَّ أَحَدُكُمْ خَبُثَتْ نَفْسِي وَلَكِنْ لِيَقُلْ لَقِسَتْ نَفْسِي