Ma'mar bin Rashid معمر بن راشد · Chapters on Seeking Permission

from Abu Tamimah al-Hujaimi from Jabir bin Sulaim who said: "I went to the Prophet (ﷺ) and I said: ''Alaikas-Salam (upon you be peace)' so he replied: 'Do not say "'Alaikas-Salam" rather say As-Salamu Alaik.'" And he mentioned the story in its entirety.

"Zaid bin Harithah arrived in Al-Madinah while the Messenger of Allah (ﷺ) was in his house. So he went and knocked at the door, so the Messenger of Allah (ﷺ) stood naked (1), dragging his garment - and by Allah! I did not see him naked before nor afterwards - and he hugged him and kissed him." (1) They say that the meaning of naked here is that he was not wearing his Rida or upper wrap and it was…