His grandfather said: "The Messenger of Allah ﷺ prayed Maghrib in the masjid of Banu 'Abdul-Ashhal, and when he finished praying some people stood up and offered Nafl prayers. The Prophet ﷺ said: 'You should offer this prayer in your houses.'"
صَلَّى رَسُولُ اللَّهِ ﷺ صَلاَةَ الْمَغْرِبِ فِي مَسْجِدِ بَنِي عَبْدِ الأَشْهَلِ فَلَمَّا صَلَّى قَامَ نَاسٌ يَتَنَفَّلُونَ فَقَالَ النَّبِيُّ ﷺ عَلَيْكُمْ بِهَذِهِ الصَّلاَةِ فِي الْبُيُوتِ