The Prophet ﷺ came to the mosque of Banu AbdulAshhal. He prayed the sunset prayer there. When they finished the prayer, he saw them praying the supererogatory prayer after it. He said: This is the prayer to be offered in the houses.  

أَنَّ النَّبِيَّ ﷺ أَتَى مَسْجِدَ بَنِي عَبْدِ الأَشْهَلِ فَصَلَّى فِيهِ الْمَغْرِبَ فَلَمَّا قَضَوْا صَلاَتَهُمْ رَآهُمْ يُسَبِّحُونَ بَعْدَهَا فَقَالَ هَذِهِ صَلاَةُ الْبُيُوتِ  

The Messenger of Allah ﷺ used to prolong the recitation of the Qur'an in the two rak'ahs after the sunset prayer until the people praying in the mosque dispersed. Abu Dawud said: This has been reported by Nasr al-Mujaddir from Ya'qub al-Qummi with the same chain of narrators. Abu Dawud said: Muhammad b. 'Isa b. al-tabba' transmitted from Nasr al-Mujaddir from Ya'qub in like manner.  

كَانَ رَسُولُ اللَّهِ ﷺ يُطِيلُ الْقِرَاءَةَ فِي الرَّكْعَتَيْنِ بَعْدَ الْمَغْرِبِ حَتَّى يَتَفَرَّقَ أَهْلُ الْمَسْجِدِ  

This tradition from the Prophet ﷺ without mentioning the name of the Companion in the chain (in the mursal form). Abu dawud said: I heard Muhammad b. Humaid say: I heard Ya'qub say: Anything I narrated to you from Ja'far on the authority of Sa'id b. Jubair from the Prophet ﷺ is directly coming from Ibn Abbas from the Prophet ﷺ.  

عَنِ النَّبِيِّ ﷺ بِمَعْنَاهُ مُرْسَلٌ