Muwatta Malik 906

These are the words of a Companion, not of the Prophet ﷺ. The chain is graded on its own terms.

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، ‏.‏ أَنَّ عُمَرَ بْنَ الْخَطَّابِ، لَمَّا قَدِمَ مَكَّةَ صَلَّى بِهِمْ رَكْعَتَيْنِ ثُمَّ انْصَرَفَ فَقَالَ يَا أَهْلَ مَكَّةَ أَتِمُّوا صَلاَتَكُمْ فَإِنَّا قَوْمٌ سَفْرٌ ‏.‏ ثُمَّ صَلَّى عُمَرُ بْنُ الْخَطَّابِ رَكْعَتَيْنِ بِمِنًى وَلَمْ يَبْلُغْنَا أَنَّهُ قَالَ لَهُمْ شَيْئًا ‏.‏

Yahya related to me from Malik from Ibn Shihab from Said ibn al- Musayyab that Umar ibn al-Khattab prayed two rakas with everybody when he arrived in Makka. Then, when he had finished, he said, "People of Makka, complete your prayer, because we are a group of travellers." Later, Umar ibn al-Khattab prayed two rakas with them at Mina, but we have not heard that he said anything to them on that occasion