حَدَّثَنَا عَبْدُ الصَّمَدِ حَدَّثَنَا هَمَّامٌ حَدَّثَنَا مَطَرٌ عَنْ سَالِمٍ عَنْ أَبِيهِ قَالَ سَافَرْتُ مَعَ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَمَعَ عُمَرَ فَكَانَا لَا يَزِيدَانِ عَلَى رَكْعَتَيْنِ وَكُنَّا ضُلَّالًا فَهَدَانَا اللَّهُ بِهِ فَبِهِ نَقْتَدِي
مسند امام احمد بن حنبل · Hadith 5698
It was narrated from Saalim that his father said: I travelled with the Prophet (PBUH) and with 'Umar and they prayed no more foan two rak'ahs. We were astray, then Allah guided us through him (the Prophet (PBUH)) and we shall certainly follow his example.
Sanad
حَدَّثَنَا عَبْدُ الصَّمَدِ حَدَّثَنَا هَمَّامٌ حَدَّثَنَا مَطَرٌ عَنْ سَالِمٍ عَنْ أَبِيهِ