مُسْنَدُ أَحْمَدَ
Musnad Ahmad 1600
Musnad Abu Ishaq Sa'd bin Abi Waqqas
Isma"eel bin Muhammad narrated from ‘Amir bin Sa"d that Sa"d said when he was sick: If I die, make a lahd (niche) for me and do what was done for the Messenger of Allah (ﷺ).
Musnad Ahmad 1601Sahih (Darussalam) [ Muslim (966)]