(6) باب رَدِّ السَّلاَمِ بِالإِشَارَةِ فِي الصَّلاَةِ
It was narrated from 'Ammar bin Yasir that:
He greeted the Messenger of Allah (ﷺ) with the Salam when he was praying, and he returned the greeting.
Reference: Sunan an-Nasa'i 1188
In-book reference: Book 13, Hadith 10
English translation: Vol. 2, Book 13, Hadith 1189