Sunan Abi Dawud, Hadith 1123 ⓘ
Narrated Abdullah ibn Umar: Nafi' said: Ibn Umar used to lengthen his prayer before the Friday prayer and would offer two rak'ahs after it in his house. He used to say that the Messenger of Allah would do that.
حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا إِسْمَاعِيلُ، أَخْبَرَنَا أَيُّوبُ، عَنْ نَافِعٍ، قَالَ كَانَ ابْنُ عُمَرَ يُطِيلُ الصَّلاَةَ قَبْلَ الْجُمُعَةِ وَيُصَلِّي بَعْدَهَا رَكْعَتَيْنِ فِي بَيْتِهِ وَيُحَدِّثُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يَفْعَلُ ذَلِكَ .
also referenced under: Hadith 1128 (DarusSalam) & Book 3, Hadith 1123 (USC-MSA)