To what extent is the ḥadīth sound: "He who recites the Qur’an in seven [days], that is the deed of the Muqarrabūn (those brought near to Allah); and he who recites it in five, that is the deed of the Ṣiddīqūn (the most truthful ones); and he who recites it in three, that is the deed of the worship of the Prophets"? And does its presence solely in Kanz al-ʿUmmāl and Jāmiʿ al-Aḥādīth affect its authenticity?

As-Suyuti mentioned a Hadith (definition) with the wording: "Whoever recites the Qur'an in seven [days], that is the act of the Muqarrabin (those brought near to Allah). And whoever recites it in five, that is the act of the Siddiqin (the truthful/righteous). And whoever recites it in three, that is the act of the Prophets. That is the utmost effort, and I do not think you can endure it unless you persevere in the hardship of the night, or one of you starts with a Surah (definition) and his concern is with its end." They said: "O Messenger of Allah; and in less than three?" He said: "No. And whoever among you finds energy, let him devote it to perfecting its recitation." As-Suyuti ruled this Hadith to be Mursal, and the Mursal is one of the categories of Da'if (weak).