(71) باب كَيْفَ السَّلاَمُ عَلَى الشِّمَالِ
It was narrated from 'Abdullah that:
The Prophet (ﷺ) used to say salam to his right and to his left: As-salamu 'alaykum wa rahmatullah, as-salamu alaykum wa rahmatullah (peace be upon you and the mercy of Allah, peace be upon you and the mercy of Allah) until the whiteness of his cheek could be seen from here, and the whiteness of his cheek from here.
Reference: Sunan an-Nasa'i 1324
In-book reference: Book 13, Hadith 146
English translation: Vol. 2, Book 13, Hadith 1325