Musnad Ahmad 31:57

Sufyan narrated to us, he heard ‘Amr, from ‘Attab bin Hunayn, narrating from Abu Sa’id, who said: The Messenger of Allah (ﷺ) said — and Sufyan said: I do not know who ‘Attab is —: "If Allah were to withhold the rain from the people for seven years, then send it down, a group of them would become disbelievers because of it, saying: 'We have been given rain by the star of Al-Majdah.'"