Is it true that those who pray at night (Ahl al-Qiyam) will enter Paradise without reckoning and attain high ranks therein?

Night prayer (Qiyam al-Layl) is a great act of proximity to Allah, and many texts from the Qur'an and Sunnah have been narrated regarding its virtues. Among them is the verse: (And from [part of] the night, pray with it as additional [worship] for you; it is expected that your Lord will resurrect you to a praised station.) And His saying: (Their sides forsake their beds; they supplicate their Lord in fear and aspiration, and from what We have provided them, they spend. (16) And no soul knows what has been hidden for them of comfort for eyes as reward for what they used to do.)

It was narrated in the hadith of Asma bint Yazid that the one who performs night prayer will enter Paradise without reckoning. The gist of it is: "People will be gathered on one plain on the Day of Resurrection, then a caller will proclaim: 'Where are those whose sides used to forsake their beds?' So they will stand up, and they will be few, entering Paradise without reckoning. Then the rest of the people will be commanded to account."

This hadith is disputed, with some deeming it weak and others considering it good due to supporting evidence. It has other corroborating narrations and chains of transmission. The conclusion is that this great reward, which is entering Paradise without reckoning, is hoped for those who perform night prayer.