Sahih al-Bukhari 6179
صحيح البخاري#6179SahihNarrated `Aisha:The Prophet (ﷺ) said, "None of you should say Khabuthat Nafsi, but he is recommended to say 'Laqisat Nafsi
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 78:203