Sayyiduna Uqbah bin Amir (may Allah be pleased with him) says that the Messenger of Allah (peace and blessings be upon him) said: "Do not force your sick to eat and drink, for Allah feeds them and gives them drink."
Only Bakr bin Yunus bin Bukayr narrated it from Musa bin Ali, and he is munkar al-hadith (his narrations are rejected); al-Bukhari said this. Ali bin Qutaybah al-Rifa'i and Muhammad bin al-Walid al-Yashkuri narrated it from Malik, from Nafi', from Ibn Umar (may Allah be pleased with them both) as a saying of the Prophet, and that is false (batil), with no basis in the hadith of Malik.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19583