[Machine] That the Prophet ﷺ used to greet by shaking hands with his right and left hand until the whiteness of his cheek could be seen.

أَنَّ النَّبِيَّ ﷺ كَانَ يُسَلِّمُ عَنْ يَمِينِهِ وَعَنْ شِمَالِهِ حَتَّى يُرَى بَيَاضُ خَدِّهِ