Quran

The essence of this substitution is rejecting the knowledge of the scholar by not becoming guided by it, and rejecting the righteousness of the righteous by not following his example. Al-Biqai: 1/390.
Question: What is the essence of the substitution mentioned in the verse?

If Allah bestows a blessing, either religious or worldly, upon a person who does not give thanks for it or does what is required of him as a result, then this blessing will diminish and disappear, and it will be replaced with disbelief and sin. Thus, disbelief becomes a substitute for the blessing. As for the one who gives thanks to Allah and does what is required of him, the blessing will remain and continue, and Allah will increase it for him. Al-Saadi: 95.
Question: How do blessings continue? And how do they cease?

They ridiculed the believers who followed you because they abstained from competition in wealth and leaderships and boasting about them, and concerned themselves only with Allah's bounty by abandoned worldly adornments. Al-Tabari: 4/273.
Question: What are the standards of the people of this world for success and prosperity?

Aisha (i) said that when the Prophet (r) stood up to pray at night, he began his prayer by saying: "O Allah, Lord of Gabriel, Mikael and Israfil, Creator of the heavens and Earth, Knower of the unseen and the seen, You judge between Your servants in that which they differ. Guide me to the truth by Your leave in what they have differed, for verily You guide whom You will to a straight path." Ibn Taimyah: 1/493.
Question: The Prophet (r) used to seek guidance from Allah in matters of disagreement, so what was his supplication?

(Or do you think): Addressing the believers to encourage them to be patient when facing hardships. (Without being tested), means that you will not enter Paradise until you are afflicted with what befell the people before you. Ibn Juzay: 1/107.
Question: In light of this verse, what is the condition for entering Paradise?

A declaration from Allah that He relieves the distress of His Prophets and those with them only after they severed all ties to everyone but Him in order to test their hearts for righteousness, and their consciences become attached to Him, the Almighty, alone. Al-Biqai: 1/397.
Question: Why is victory delayed sometimes? Explain in light of this verse.

The verse is concluded by asserting that Allah is All-Knowing of one's spending because boasting and showing off is part of human nature. Al-Biqai: 1/400.
Question: What is the significance of concluding this verse with Allah's attribute of knowledge?