Surah 31. Luqman, Ayah 28

I.e., in view of His almightiness, there is no difference between the creation and resurrection of many and of one, just as every single soul is as much within His ken as is all mankind.

Allah's greatness and infinitude are such that He can create and cherish not only a whole mass, but each individual soul, and He can follow its history and doings until the final Judgment. This shows not only Allah's glory and Omniscience and Omnipotence: it also shows the value of each individual soul in His eyes, and lifts individual responsibility right up into relations with Him.