Sayyiduna Ibn Abbas (may Allah be pleased with them both) reports that the Messenger of Allah (peace and blessings be upon him) said: "Whoever visits a sick person and says: ' «أَسْأَلُ اللّٰهَ الْعَظِيمَ رَبَّ الْعَرْشِ الْعَظِيمِ أَنْ يَشْفِيَكَ» ' 'I ask Allah, the Mighty, the Lord of the Great Throne, to cure you,' and says this seven times, then if his time of death has not come, he will be cured."