Will the believer have one rank or more in Paradise, taking into consideration what has been mentioned in the Hadiths about multiple ranks for some of the people of Paradise?

There is no indication that a believer is granted numerous ranks in Paradise; rather, they will be in one rank and may join those above them. What has been narrated about Zayd ibn Amr ibn Nufayl entering two ranks is incorrect. The correct narration is that Waraqah ibn Nawfal saw for him "a paradise or two," and this is a doubt from the narrator, not a statement from the Prophet (peace be upon him). If it were to be proven, it would mean vastness within a single rank, not multiple ranks. The mentioned hadith about the lowest in rank among the people of Paradise possessing seven ranks, servants, and houris does not have an authentic chain of narration; it is weak and rejected because it contradicts sound hadiths.