Sahih al-Bukhari 5746

Ṣadaqah ibn al-Faḍl narrated to me: Ibn ʿUyaynah informed us, from ʿAbd Rabbih ibn Saʿīd, from ʿAmrah, from ʿĀʾishah, who said: “When reciting a healing supplication, the Prophet ﷺ would say, ‘The dust of our land and the saliva of some of us: our sick person is healed by the permission of our Lord.’”