Hadithcore
Sahih al-Bukhari, 4723
sahih

Narrated Aisha:

The (above) verse was revealed in connection with the invocations.

حَدَّثَنِي طَلْقُ بْنُ غَنَّامٍ، حَدَّثَنَا زَائِدَةُ، عَنْ هِشَامٍ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ قَالَتْ أُنْزِلَ ذَلِكَ فِي الدُّعَاءِ‏.‏

References2 variants
In-Book Reference
Book 65, Hadith 245
USC-MSA web (English) reference
Vol. 6, Book 60, Hadith 247 (deprecated numbering scheme)