Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
ahmad:88 – Hārūn b. Maʿrūf > Ibn Wahb > ʿAmr b. al-Ḥārith > Abū al-Naḍr > Abū Salamah b. ʿAbd al-Raḥman > ʿAbdullāh b. ʿUmaraʿan Saʿd b. Abū Waqqāṣ

Yes, if Sa'd narrates some-thing to you from the Messenger of Allah ﷺ, do not ask anyone else about it.  

أحمد:٨٨ – حَدَّثَنَا هَارُونُ بْنُ مَعْرُوفٍ قَالَ حَدَّثَنَا ابْنُ وَهْبٍ عَنْ عَمْرِو بْنِ الْحَارِثِ عَنْ أَبِي النَّضْرِ عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ عَنْ عَبْدِ اللهِ بْنِ عُمَرَعَنْ سَعْدِ بْنِ أَبِي وَقَّاصٍ

عَنْ رَسُولِ اللهِ ﷺ أَنَّهُ مَسَحَ عَلَى الْخُفَّيْنِ وَأَنَّ عَبْدَ اللهِ بْنَ عُمَرَ سَأَلَ عُمَرَ عَنْ ذَلِكَ فَقَالَ نَعَمْ إِذَا حَدَّثَكَ سَعْدٌ عَنْ رَسُولِ اللهِ ﷺ شَيْئًا فَلا تَسْأَلْ عَنْهُ غَيْرَهُ  

See similar narrations below:

Collected by Bukhārī
bukhari:202 – Aṣbagh b. al-Faraj al-Miṣrī > Ibn Wahb > ʿAmr > Abū al-Naḍr > Abū Salamah b. ʿAbd al-Raḥman > ʿAbdullāh b. ʿUmar > Saʿd b. Abū Waqqāṣ

Saʿd bin Abi Waqqas said, "The Prophet ﷺ passed wet hands over his Khuffs (socks made from thick fabric or leather)." ʿAbdullah bin ʿUmar asked ʿUmar about it. ʿUmar replied in the affirmative and added, "Whenever Saʿd narrates a Hadith from the Prophet, there is no need to ask anyone else about it."  

البخاري:٢٠٢ – حَدَّثَنَا أَصْبَغُ بْنُ الْفَرَجِ الْمِصْرِيُّ عَنِ ابْنِ وَهْبٍ قَالَ حَدَّثَنِي عَمْرٌو حَدَّثَنِي أَبُو النَّضْرِ عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ عَنْ سَعْدِ بْنِ أَبِي وَقَّاصٍ

عَنِ النَّبِيِّ ﷺ أَنَّهُ مَسَحَ عَلَى الْخُفَّيْنِ وَأَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ سَأَلَ عُمَرَ عَنْ ذَلِكَ فَقَالَ نَعَمْ إِذَا حَدَّثَكَ شَيْئًا سَعْدٌ عَنِ النَّبِيِّ ﷺ فَلاَ تَسْأَلْ عَنْهُ غَيْرَهُ وَقَالَ مُوسَى بْنُ عُقْبَةَ أَخْبَرَنِي أَبُو النَّضْرِ أَنَّ أَبَا سَلَمَةَ أَخْبَرَهُ أَنَّ سَعْدًا حَدَّثَهُ فَقَالَ عُمَرُ لِعَبْدِ اللَّهِ نَحْوَهُ