This tradition has also been transmitted by Muhammad bin Muslim through a different chain of narrators. This version adds; “While he is sitting before he gives the salutation. ”
USC-MSA web (English) Reference: Book 2 , Number 1026
قال الشيخ الألباني: حسن صحيح
قال الشيخ زبير على زئي: صحيح انظر الحديث السابق (1030)