Furthermore, his words, “Do not grieve,” show that his companion was his ally, and that he grieved out of fear of their common enemy. He therefore said to him:
“Do not grieve; indeed, Allah is with us.”
Had he been his enemy, he would have grieved only when his enemy could overpower him. He would therefore not have been told, “Do not grieve; indeed, Allah is with us.” For Allah’s being (1) with His Prophet brings the Prophet joy, whereas His being with the Prophet’s enemy would distress him. It is therefore impossible to combine the two, especially alongside his words, “Do not grieve.” Then there are His words:
“When those who disbelieved drove him out, as one of two, when they were in the cave.” [Surah al-Tawbah: 40]
Supporting him does not mean leaving him accompanied by his enemy alone; rather, it means that his ally accompanies him and that he escapes his enemy. How, then, could Allah [not] grant victory (2) over the disbelievers to those who remained constantly by his side, never leaving him (3) by night or day, and accompanied him on his journey?
The words “as one of two” form a circumstantial clause referring to the pronoun in “drove him out.” That is, they drove him out while he was a prophet who was one of two. He is thus described as one of the two, which means that both were driven out together. He could not have gone out as one of two unless the other was with him. Had he been driven out without the other, he would not have been driven out as one of two. This therefore shows that the disbelievers drove him out as one of two: they drove him out accompanied by his companion, while the latter was with him. It follows that they must have (4) driven both of them out.
That is indeed what happened, for the disbelievers drove out all the Emigrants, as Allah Most High says:
“For the poor Emigrants who were expelled from their homes and their property, seeking bounty from Allah and His pleasure.” [Surah al-Hashr: 8]