Saad bin Abu Waqqas reported,

The Messenger of Allah ﷺ gave gifts to a group of men while Saad was sitting among them. Saad said, "The Messenger of Allah ﷺ left out one of them and gave him nothing, though he was the most impressive to me of them all."So I said, "Messenger of Allah, what about so-and-so? By Allah, I consider him a believer."The Messenger of Allah ﷺ replied, "Or a Muslim?"I remained silent for a while, but what I knew of the man overcame me, so I said again, "Messenger of Allah, what about so-and-so? By Allah, I consider him a believer."The Messenger of Allah ﷺ replied, "Or a Muslim?"I remained silent for a while, but what I knew of him overcame me, so I said again, "Messenger of Allah, what about so-and-so? By Allah, I consider him a believer."The Messenger of Allah ﷺ replied, "Or a Muslim? I give to a man while another is dearer to me than him, out of fear that he might be cast face-down into the Fire."

Muslim 379

Sahih

حدثني زهير بن حرب حدثنا يعقوب بن إبراهيم حدثنا ابن أخي ابن شهاب عن عمه قال أخبرني عامر بن سعد بن أبي وقاص

عن أبيه سعد

أن رسول الله ﷺ أعطى رهطا وسعد جالس فيهم قال سعد فترك رسول الله ﷺ منهم من لم يعطه وهو أعجبهم إلي فقلت يا رسول الله ما لك عن فلان فوالله إني لأراه مؤمنا فقال رسول الله ﷺ أو مسلما قال فسكت قليلا ثم غلبني ما أعلم منه فقلت يا رسول الله ما لك عن فلان فوالله إني لأراه مؤمنا فقال رسول الله ﷺ أو مسلما قال فسكت قليلا ثم غلبني ما علمت منه فقلت يا رسول الله ما لك عن فلان فوالله إني لأراه مؤمنا فقال رسول الله ﷺ أو مسلما إني لأعطي الرجل وغيره أحب إلي منه خشية أن يكب في النار على وجهه

مسلم 379صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Faith
Chapter
Reconciling the heart of one who fears for his faith due to its weakness, and the prohibition of asserting faith with certainty without conclusive evidence
Numbering
Darussalam 379
Muslim 379