Do the conditions of sinners vary in the graves?

Question:
As for the sinners who enter the Fire and are purified from it, what is their condition in the grave?

Answer:
They are divided into categories, and Allah knows their conditions best: some are punished, some are not punished, and some are punished at times and then left alone. Allah (Exalted and Majestic is He) placed them in the barzakh (the interval between death and resurrection), and it is said of them: "Those of the two gray hairs." He mentioned the conditions of the people of faith and their safety, and He mentioned the disbelievers and their punishment.
As for those of the two gray hairs—and they are the sinners—in the majority of texts, there is silence regarding their condition in the grave, while in some texts, what befalls them in the grave is specified; such as the one who was punished in the grave for not purifying himself from urine, and the one who was punished for talebearing. We ask Allah for safety.
The conclusion is that they are in danger of punishment in both the Fire and the grave, but they are not among the disbelievers. The punishment of the disbelievers is certain, whereas as for the sinners, some of them may be forgiven due to good deeds and righteous works; a good deed may outweigh their bad deeds, or they may be punished for a time and then forgiven, or their punishment may be postponed until the Fire. They are under the will of Allah (Glorified and Exalted is He), and the details of their matter are left to Allah (Exalted and Majestic is He).