Musannaf Ibn Abi Shaybah

It is narrated from Hazrat Atris bin Arqoob, he says that Hazrat Abdullah said: Whoever, at the time of serving food, says: In the name of Allah, who has the best name. Whatever is in the earth and the heavens belongs to Allah. With His name, no illness harms. O Allah! Grant blessing, well-being, and healing in this food. Then, this food, whatever it may be, will not cause harm.