Exegesis of the saying of Allah the Exalted: “And those days We alternate among the people”

Question:
May Allah bless you and reward you. Honorable Shaykh Salih, Allah the Mighty and Majestic says: . Without a doubt, may Allah preserve you, we are on the threshold of a new Hijri year. Without a doubt, self-accounting is among the foundations of the Shari'ah and also among the necessities of reason. How does the Muslim stand before the change of these days and the succession of night and day, may Allah preserve you?

Answer:
In the name of Allah, the Most Gracious, the Most Merciful. Praise be to Allah, Lord of the worlds, and may Allah send prayers and blessings upon our Prophet Muhammad, and upon his family and all his Companions. It is obligatory for the Muslim to hold himself accountable at all times.
Not at one time and not at another, nor when it is said to be the end of the year and the beginning of the year. Rather, he holds himself accountable at all times. He increases in good deeds and repents from evil deeds every day. Indeed, every hour. This is the affair of the Muslim.
As for the saying of Allah the Exalted: And let Allah know those who believe from among you , these verses are in the context of what Allah, Glorified and Exalted is He, mentioned in Surat al-Imran regarding the Battle of Uhud and the trial that befell the Muslims in it, namely the killing and wounding. It was a test from Allah, Blessed and Exalted is He, for them, and a purification for them, not a destruction of them.
Therefore He said: “And that Allah may know those who believe.” Those who believed at this stance, and were patient with what befell them, and sought reward from Allah, and held themselves accountable for the cause of what befell them.
And let Allah know those who believed, and Allah knows everything, (Glorified and Exalted is He). But what is intended here is the knowledge of manifestation when the thing occurs; otherwise, Allah knows it before it occurs, and He has written it in the Preserved Tablet. But this knowledge is only the knowledge of manifestation when what Allah (Glorified and Exalted is He) has decreed comes to pass. Whatever befalls the Muslims in terms of killing, it is martyrdom in the cause of Allah for those who are killed. So it is among their good deeds, because the reward of the martyrs with Allah is great and their status with Allah is high, and it is better than this world and what is in it. And this is part of the wisdom in what Allah brings upon His servants, or what Allah has brought upon the believing servants in this incident. And Allah does not love the wrongdoers; He does not love the disbelievers and the wrongdoers. It does not mean that because He caused the disbelievers to prevail over the Muslims in this incident that He loves the disbelievers and hates the believers. No, the opposite is the case, because He loves the believers and purifies them and takes from them martyrs, and He does not love the disbelievers. Rather, He (Glorified and Exalted is He) , yes.
Then He, Glorified and Exalted is He, said: This is also part of the wisdom: that what befell the Muslims in this battle was a purification for them, a cleansing for them of their sins, and a purification for them. "And let Allah purify those who believe from among you and know the patient ones" — this is also among the wisdoms: that Allah, Glorified and Exalted is He, knows who is patient during calamities and who is distressed. The hypocrites were distressed, whereas the believers were patient and sought reward from Allah, Mighty and Majestic. So their faith was strengthened, their certainty was magnified, and their hope in Allah, Blessed and Exalted is He, was increased.