Hadith 4:785
Yazid ibn Harun narrated to us, from Hisham, from al-Hasan, who said: If he wishes, he may stipulate that he eats his dinner among his family, and that he does not enter his shade, but rather his dinner is brought to him in the courtyard of his house.
حدثنا يزيد بن هارون عن هشام عن الحسن قال إن شاء اشترط ان يتعشى في أهله ولا يدخل ظله ولكن يؤتى بعشائه في فناء داره