Reference...
قيل: وما هن يا أمير المؤمنين؟ قال: تزوجه فاطمة بنت رسول الله -صلَّى الله عليه وسلَّم-، وسكناه المسجد مع رسول الله -صلَّى الله عليه وسلَّم-، يحل له فيه، ما يحل له، والراية يوم خيبر. هذا حديث صحيح الإسناد، ولم يخرجاه.
Reference: o Mustadrak al-Hakim, vol 3, #230/4632 (المجلد الثالث >> -31- كتاب معرفة الصحابة رضي الله تعالى عنهم >> ذكر إسلام أمير المؤمنين: علي -رضي الله تعالى عنه-) o Kanz al-U'ummal, by al-Muttaqi al-Hindi, vol 13, #36376 (المجلد الثالث عشر >> فضائل علي رضي الله عنه) Umer ibn Maymun said: "I was sitting once in the company of Ibn Abbas when nine men came to him and said O Ibn Abbas!
Either come to debate with us, or tell these folks that you prefer a private debate.' He had not lost his eye-sight yet. He said: I rather debate with you.' So they started talking, but I was not sure exactly what they were talking about. Then he stood up and angrily said: They are debating about a man who has ten merits nobody else ever had.
They are arguing about a man whom the holy Prophet (pbuh) has said, I shall dispatch a man whom Allah shall never humiliate, one who loves Allah and His Messenger (pbuh) and who is loved by both,' so each one of them thought to him such an honour belonged. The holy Prophet (pbuh) inquired about Ali. When the latter came unto him, with his eyes swelling in ailment, he (pbuh) blew in his eyes, shook the standard thrice and gave it to him.