Sayyidah Aishah (may Allah be pleased with her) narrates that the Prophet (peace and blessings be upon him) would pass by a sick person while he (peace and blessings be upon him) was in i'tikaf, and he would pass on as he was, without turning aside to him to ask after him.
Ibn Isa narrates that Sayyidah (Aishah) (may Allah be pleased with her) said that he (peace and blessings be upon him) would visit the sick while he (peace and blessings be upon him) was in i'tikaf.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8595