Hadith #27 (Sahih al-Bukhari)
Book: Belief
Narrator(s): Sa'd Abu Mjahd al-Ta'iy سعد أبو مجاهد الطائي الكوفي
Grade: Sahih

Allah’s Messenger (ﷺ) distributed (Zakat) amongst (a group of) people while I was sitting there but Allah’s Messenger (ﷺ) left a man whom I thought the best of the lot. I asked, “O Allah’s Messenger (ﷺ)! Why have you left that person? By Allah I regard him as a faithful believer.” The Prophet (ﷺ) commented: “Or merely a Muslim.” I remained quiet for a while, but could not help repeating my question because of what I knew about him. And then asked Allah’s Messenger (ﷺ), “Why have you left so and so? By Allah! He is a faithful believer.” The Prophet (ﷺ) again said, “Or merely a Muslim.” And I could not help repeating my question because of what I knew about him. Then the Prophet (ﷺ) said, “O Sa’d! I give to a person while another is dearer to me, for fear that he might be thrown on his face in the Fire by Allah.”

Source: https://parallelquran.com/hadith/sahih-al-bukhari-27/

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Hadith #1824 (Sunan Ibn Majah)
Book: The Chapters on Expiation
Narrator(s): Abu Hurairah, Ali bin Muhammad bin Ishaq al-Tanafasi علي بن محمد بن إسحاق الطنافسي, Sa'd Abu Mjahd al-Ta'iy سعد أبو مجاهد الطائي الكوفي, Waki' bin al-Jarrah وكيع بن الجراح

“When the Prophet (ﷺ) took an oath he would say: ‘By the One in Whose Hand is the soul of Muhammad.”‘

Source: https://parallelquran.com/hadith/sunan-ibn-majah-1824/