It is narrated from Hazrat Aisha (may Allah be pleased with her) that when the Prophet (peace and blessings be upon him) fell ill, I began to recite over him the same words for healing with which Hazrat Jibreel (peace be upon him) used to heal him: "O Lord of the people! Remove this pain. Grant him healing, for You are the Healer. There is no healing except Your healing. Grant such a healing that leaves no trace of illness." When the Prophet (peace and blessings be upon him) was afflicted with the illness of his passing, I took his blessed hand and began to recite this supplication, but the Prophet (peace and blessings be upon him) said, "Remove your hand. This could only benefit me up to a certain appointed time."
Hadith Referenceمسند احمد / مسند النساء / 26243
Hadith Gradingحکم دارالسلام:حديث صحيح دون قوله: أرفعي عني، فإنما... فقد تفرد بها عمرو بن مالك، قال ابن حجر عنه: صدوق له اوهام