Aḥmad Ibn Ḥanbāl (may ALLĀH have mercy on him) said: *"If a person delivers Salām to you from someone, then it is recommended to say,* *‎عليك وعليه السلام* *'Alakyā wa 'Alāyhi salām. (Peace be upon you and him.)'"* 📖 Adāb ash-Shar'iyyah (1/475)