Sunan Abi Dawud Book 15, Hadith 29
Ibn ‘Abbas said “The Qur’anic verse “Unless you go forth, He will punish you with a grievous penalty, and the verse “It is not fitting for the people of Medina”... up to “that Allaah might required their deed with the best (possible reward) have been repealed by the verse. Nor should the believers all go forth together.”
The Prophet (ﷺ) said: Use your property, your persons any your tongues in striving against the polytheists.
Najdah bin Nufai’ said “I asked Ibn ‘Abbas about the verse. “Unless you go forth, He will punish you with a grievous penalty.” He replied “The rain stopped from them. This was their punishment.”