رَأَيْتُ عُمَرَ بْنَ الْخَطَّابِ يُصَلِّي بِذِي الْحُلَيْفَةِ رَكْعَتَيْنِ فَسَأَلْتُهُ عَنْ ذَلِكَ، فَقَالَ إِنَّمَا أَفْعَلُ كَمَا رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَفْعَلُ
It was narrated that Ibn Al-Simt said: "I saw 'Umar bin Al-Khattab praying two rak'ahs in Dhul-Hulaifah and I asked him about that. He said: 'I am simply doing that which I saw the Messenger of Allah (ﷺ) doing.'"