Most of the Meccan surahs—such as al-Anʿām, al-Aʿrāf, the Ḥā-Mīm group, the Ṭā-Sīn group, and the Alif-Lām-Rā group—deal with those universal foundations on which the laws revealed to all the messengers are in full agreement: worshipping Allah alone with no partner; truthfulness, justice, and sincerity; and the prohibition of wrongdoing, indecency, idolatry, and speaking about Allah without knowledge. Likewise, the bulk of the sound reports they possess from the prophets—found in the Torah, the Gospel, the Psalms, and the other prophetic writings—accords with what is transmitted from Muhammad, peace and blessings be upon him; each set of texts bears witness to the other. This mutual corroboration is itself proof of the prophethood of those earlier messengers and a proof of the prophethood of Muhammad, peace and blessings be upon him.

For that reason Allah cites such accounts to display His favor in sending Muhammad and to serve as evidence of his prophethood, as in His words:

“And when the angels said, ‘O Mary, Allah has chosen you, purified you, and chosen you above the women of all peoples. O Mary, be devoutly obedient to your Lord, prostrate yourself, and bow with those who bow.’ That is part of the tidings of the unseen which We reveal to you. You were not with them when they cast lots to decide who would care for Mary, nor were you with them when they disputed.” (Qur’an 3:42-44)

And after relating the story of Noah, the Exalted said:

“That is from the reports of the unseen which We reveal to you; neither you nor your people knew it before this. So be patient, for the outcome belongs to the God-fearing.” (Qur’an 11:49)