Silsilat al-Ahadith al-Sahihah

Sayyiduna Abu Hurairah (may Allah be pleased with him) says: Umm Abdullah bint Abu Dhibab was ill, so I went to her to visit her. She said: O Abu Hurairah! Once I went to visit Lady Umm Salamah (may Allah be pleased with her), who was ill. She saw a boil on my hand and said that I heard the Messenger of Allah (peace and blessings be upon him) say: "When Allah Almighty tests a servant and he dislikes it because of his condition and state, Allah makes that hardship an expiation for his sins and a means of purification for him, as long as he does not present it at the door of anyone other than Allah (to seek a cure), nor does he call upon anyone other than Allah to remove it."