At-Tawbah 9:40

Illa tansuroohu faqad nasarahuAllahu ith akhrajahu allatheena kafaroo thaniyaithnayni ith huma fee alghari ithyaqoolu lisahibihi la tahzan inna AllahamaAAana faanzala Allahu sakeenatahu AAalayhiwaayyadahu bijunoodin lam tarawha wajaAAala kalimata allatheenakafaroo assufla wakalimatu Allahi hiyaalAAulya wallahu AAazeezun hakeem

"If you do not aid him [i.e., the Prophet (ﷺ)] - Allāh has already aided him when those who disbelieved had driven him out [of Makkah] as one of two, when they were in the cave and he [i.e., Muḥammad (ﷺ)] said to his companion, "Do not grieve; indeed Allāh is with us." And Allāh sent down His tranquility upon him and supported him with soldiers [i.e., angels] you did not see and made the word of those who disbelieved the lowest, while the word of Allāh - that is the highest. And Allāh is Exalted in Might and Wise."

At-Tawbah 9:40, translation by Sahih International