“So do not be in doubt about what these people worship. They worship only as their fathers worshipped before; and We shall surely give them their full allotted share, undiminished. And We certainly gave Moses the Book, but it was disputed; and had it not been for a prior decree from your Lord, judgement would have been passed between them. Indeed, they are in unsettling doubt about it. And indeed, your Lord will surely repay each of them in full for their deeds. He is All-Aware of what they do.” (109–111)

“So do not be in doubt”: that is, in uncertainty, “about what these people worship”—that they are astray. “They worship only as their fathers worshipped before”: an omission is understood here; that is, as their fathers used to worship. “We shall surely give them their full allotted share”: their portion of recompense, “undiminished.”

“And We certainly gave Moses the Book”: the Torah, “but it was disputed”; some believed in it while others denied it, just as your people have done with the Quran. Thus Allah consoles His Prophet, peace and blessings be upon him. “And had it not been for a prior decree from your Lord”: concerning the postponement of their punishment, “judgement would have been passed between them”; that is, they would have been punished immediately, and their punishment and destruction would have been concluded. “Indeed, they are in unsettling doubt about it”: doubt that gives rise to suspicion.

“And indeed, each…” Ibn Kathir, Nafiʿ, and Abu Bakr recited it as wa-in kullan, with an unvocalized nūn, as a lightened form of the emphatic particle; the remaining reciters read it with the nūn doubled. The word lammā was read with its mīm doubled here, in Ya-Sin, and in al-Tariq by Ibn ʿAmir, ʿAsim, and Hamzah. Abu Jaʿfar agreed with ʿAsim and Hamzah in reading it with doubling here, in al-Tariq, and in al-Zukhruf. (1) The remaining reciters read it without doubling.

Those who read it with doubling said that its original form was: wa-inna kullan lamin mā layuwaffiyannahum (“Indeed, every one is among those whom He will surely repay in full”). The preposition min was joined to mā, and the nūn became a mīm through assimilation. Three mīms then came together, so one of them was omitted, leaving lammā with a doubled mīm. Here, mā has the meaning of man (“those who”) and is a term used for a group of people, as Allah Most High says: “Marry those women who please you” (al-Nisa 3); that is, those who please you. The meaning is: Indeed, every one is among a group whom He will surely repay in full. (2)

Those who read it without doubling said that mā is an additional particle, inserted between the two lām letters to separate them because of the dislike of their coming together. Thus, the meaning is: Indeed, He will surely repay every one of them in full. (3)