A short excerpt from ‘Ā’ishah’s report:
وَكَانَ يَخْلُو بِغَارِ حِرَاءٍ فَيَتَحَنَّثُ فِيهِ (Sahih al-Bukhari, 3)
Translation: He would withdraw to the cave of Ḥirā’ and worship there.
Narrator’s explanation: وَهُوَ التَّعَبُّدُ, meaning worship. It explains يَتَحَنَّثُ.
Distinguish this explanation from the report’s own wording.