Abu Hurairah (May Allah be pleased with him) reported:
The Messenger of Allah ﷺ said, "The Mufarridun have gone ahead." He was asked, "Who are the Mufarridun?" He ﷺ replied, "Those men and women who frequently celebrate the remembrance of Allah."

[Muslim].

وعنه قال: قال رسول الله ﷺ: "سبق المفردون" قالوا: وما المفردون يا رسول الله؟ قال: "الذاكرون الله كثيرًا والذكرات" ((رواه مسلم)).