Of him you are neglectful and divert your attention to another.
meaning, `you are too busy.'
Here Allah commands His Messenger to not single anyone out with the warning. Rather, he should equal warn the noble and the weak, the poor and the rich, the master and the slave, the men and the women, the young and the old. Then Allah will guide whomever He chooses to a path that is straight. He has the profound wisdom and the decisive proof.
Abu Ya`la and Ibn Jarir both recorded from Aishah that she said about,
(He frowned and turned away), "was revealed."
At-Tirmidhi recorded this Hadith but he did not mention that it was narrated by Aishah.
I say it is reported like this in Al-Muwatta' as well.
The Characteristics of the Qur'an
كَلَّ إِنَّهَا تَذْكِرَةٌ