من هو راوي حديث "من جلس مجلس ذكر حتى ينتهي كتب له أجر عمرة" وما درجته؟

The aforementioned hadith is not found in the books of Sunnah. However, there are numerous texts that encourage remembrance (dhikr) and gatherings for it, among them the saying of the Prophet, peace and blessings be upon him: "No group of people gathers in a house among the houses of Allah, reciting the Book of Allah and studying it among themselves, except that tranquility descends upon them, mercy envelops them, angels surround them, and Allah mentions them among those who are with Him" (narrated by Muslim). And his saying: "When you pass by the meadows of Paradise, graze in them." They asked, "What are the meadows of Paradise?" He replied, "Circles of remembrance (dhikr)" (narrated by Ahmad and Tirmidhi).