Abu Huraira reported: The Messenger of Allah, peace and blessings be upon him, said, “Those in solitude have raced ahead.” They said, “O Messenger of Allah, who are those in solitude?” The Prophet said, “They are men and women who remember Allah often.”
Source: Ṣaḥīḥ Muslim 2676
Grade: Sahih (authentic) according to Muslim
عَنْ أَبِي هُرَيْرَةَ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ سَبَقَ الْمُفَرِّدُونَ قَالُوا وَمَا الْمُفَرِّدُونَ يَا رَسُولَ اللَّهِ قَالَ الذَّاكِرُونَ اللَّهَ كَثِيرًا وَالذَّاكِرَاتُ
2676 صحيح مسلم كتاب الذكر والدعاء والتوبة والاستغفار باب الحث على ذكر الله تعالى