It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) that he said: "I never saw the Messenger of Allah (peace and blessings be upon him) praying the Duha prayer." Umar bin al-Hakam said: Then I mentioned this to Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him), and he said: "Indeed the Messenger of Allah (peace and blessings be upon him) would (sometimes) leave a (voluntary) deed, disliking that people should see him (doing it) (and take it as binding upon themselves), so he would do it in private; and as for me, I certainly pray it (the Duha prayer)."
Sayyiduna Sa'd (may Allah be pleased with him) says this. I (Ibn Hajar) say: Muhammad bin Umar (the narrator mentioned in the chain) is actually al-Waqidi, and other narrators have contradicted him (al-Waqidi) in this narration from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him).
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب النوافل / 659
Hadith Gradingمحدثین:إسناده ضعيف، مرسل
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :مرسل، إسناده ضعيف. » «انفرد به المصنف من هذا الطريق»