Saad bin Abu Waqqas reported,

Muawiya bin Abu Sufyan ordered Saad, asking him, "What prevents you from cursing Abu Turab?"Saad replied, "As long as I remember three things that the Messenger of Allah ﷺ said about him, I will never curse him. To have any one of them said about me would be dearer to me than red camels.I heard the Messenger of Allah ﷺ say to him, when he left him behind during one of his military expeditions, and Ali said to him, 'Messenger of Allah, you are leaving me behind with the women and children?' The Messenger of Allah ﷺ said to him, 'Are you not pleased to be to me in the position that Harun was to Musa, except that there is no prophethood after me?'And I heard him say on the day of Khaybar, 'I shall surely give the banner to a man who loves Allah and His Messenger, and whom Allah and His Messenger love.' We all stretched our necks hoping for it, but he said, 'Call Ali for me.' Ali was brought, suffering from sore eyes, so the Prophet spat into his eye and handed him the banner, and Allah granted victory through him.And when this verse was revealed, 'Say, Come, let us call our sons and your sons' [Aal Imran 3:61], the Messenger of Allah ﷺ called Ali, Fatimah, Hasan, and Husayn, and said, 'O Allah, these are my family.'"

Muslim 6220

Sahih

حدثنا قتيبة بن سعيد ومحمد بن عباد وتقاربا في اللفظ قالا حدثنا حاتم وهو ابن إسمعيل عن بكير بن مسمار

عن عامر بن سعد بن أبي وقاص عن أبيه قال

أمر معاوية بن أبي سفيان سعدا فقال ما منعك أن تسب أبا التراب فقال أما ما ذكرت ثلاثا قالهن له رسول الله ﷺ فلن أسبه لأن تكون لي واحدة منهن أحب إلي من حمر النعم سمعت رسول الله ﷺ يقول له خلفه في بعض مغازيه فقال له علي يا رسول الله خلفتني مع النساء والصبيان فقال له رسول الله ﷺ أما ترضى أن تكون مني بمنزلة هارون من موسى إلا أنه لا نبوة بعدي وسمعته يقول يوم خيبر لأعطين الراية رجلا يحب الله ورسوله ويحبه الله ورسوله قال فتطاولنا لها فقال ادعوا لي عليا فأتي به أرمد فبصق في عينه ودفع الراية إليه ففتح الله عليه ولما نزلت هذه الآية {فقل تعالوا ندع أبناءنا وأبناءكم} دعا رسول الله ﷺ عليا وفاطمة وحسنا وحسينا فقال اللهم هؤلاء أهلي

مسلم 6220صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Virtues of the Companions, may Allah be pleased with them
Chapter
From the virtues of Ali bin Abu Talib, may Allah be pleased with him
Numbering
Darussalam 6220
Muslim 6220