Zuhayr bin Mua'wiya bin Hudayj زهير بن معاوية بن حديج · Commercial Transactions (Kitab Al-Buyu)

We went out with the Messenger of Allah (ﷺ) to a funeral, and I saw the Messenger of Allah (ﷺ) at the grave giving this instruction to the grave-digger: Make it wide on the side of his feet, and make it wide on the side of his head. When he came back, he was received by a man who conveyed an invitation from a woman. So he came (to her), to it food was brought, and he put his hand…