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tirmidhi:942Aḥmad b. Manīʿ > ʿAbdullāh b. al-Mubārak > Maʿmar > al-Zuhrī > Sālim from his father

His father disliked making a condition during Hajj and he said: 'Is not the Sunnah of your Prophet enough for you?"  

Abū ʿĪsá said that this Ḥadīth is Ḥasan-Ṣaḥīḥ.
الترمذي:٩٤٢حَدَّثَنَا أَحْمَدُ بْنُ مَنِيعٍ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ أَخْبَرَنِي مَعْمَرٌ عَنِ الزُّهْرِيِّ عَنْ سَالِمٍ عَنْ أَبِيهِ

أَنَّهُ كَانَ يُنْكِرُ الاِشْتِرَاطَ فِي الْحَجِّ وَيَقُولُ أَلَيْسَ حَسْبُكُمْ سُنَّةَ نَبِيِّكُمْ ﷺ  

قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ

See similar narrations below:

Collected by Aḥmad
ahmad:4881ʿAbd al-Razzāq > Maʿmar > al-Zuhrī > Sālim > Ibn ʿUmar

[Machine] He used to dislike conditions for pilgrimage and would say, "Do you not trust in the Sunnah of your Prophet, peace be upon him? He did not impose any conditions."  

أحمد:٤٨٨١حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا مَعْمَرٌ عَنِ الزُّهْرِيِّ عَنْ سَالِمٍ عَنِ ابْنِ عُمَرَ

أَنَّهُ كَانَ يَكْرَهُ الِاشْتِرَاطَ فِي الْحَجِّ وَيَقُولُ أَمَا حَسْبُكُمْ بِسُنَّةِ نَبِيِّكُمْ ﷺ إِنَّهُ لَمْ يَشْتَرِطْ