Sayyiduna Ali (may Allah be pleased with him) says: Once, while the Prophet (peace and blessings be upon him) was praying, a scorpion stung him. When he finished the prayer, he said: "May Allah curse the scorpion; it does not spare a person praying nor anyone else." Then the Prophet (peace and blessings be upon him) asked for water and salt, and kept rubbing it on the affected area while reciting these Surahs: Surah Al-Kafirun, Surah Al-Falaq, and Surah An-Nas.