Musannaf Ibn Abi Shaybah 11147 — Reports on the reward for visiting

Alqamah bin Marthad narrates from the family of Abu Musa al-Ash'ari that when he came to Sayyiduna Ali (may Allah be pleased with him), Sayyiduna Ali said to him: "Why have you come? Have you come to visit the sick?" He said: "I do not know of anyone among you being ill." Sayyiduna Ali said: "Indeed, al-Hasan bin Ali (may Allah be pleased with him) (is ill)." Then Sayyiduna Ali (may Allah be pleased with him) said: "Whoever visits a sick person in the morning, seventy thousand angels pray for his forgiveness until the evening; and whoever visits a sick person in the evening, seventy thousand angels keep praying for his forgiveness until the morning."