“There is no one who sends salaams upon me but Allah will restore to me my soul so that I may return his salaams.”Sahih hadith reported by Abu Hurayrah.For those looking for the mystical teachings of our Prophet saws,this hadith is very interesting.There is really only two possible meanings here and they are not far from each other.Either the Prophet saws is immersed in his Lord(‘fana’ if you wish) and needs to be individuated in order to respond.Or he is in a very high place and needs to descend to the angelic plane(in Sufi terms from the plane of oneness(al-Lahut) to the angelic plane (al Malakut) in order to respond. Sheikh Hamza says this is a sign of his saws Istighrak(literally ‘drowned’ in the Divine Presence) which can mean either of the two.Something to contemplate.