Sunan Abi Dawud Book 5, Hadith 52
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.
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.
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).