وَقَالَ (عليه السلام):
Amir al-mu'minin, peace be upon him, said:
اخْبُرْ تَقْلِهِ.
Try (a man) and you will hate him.
قال الرضي: ومن الناس من يروي هذا لرسول الله صلى الله عليه وآله ، ومما يُقوّي أنه من كلام أميرالمؤمنين عليه السلام ما حكاه ثعلب قال: حدّثنا ابن الاَعرابي قال: قال المأمون: لو لا أنّ علياً عليه السلام قال: «اخبُر تَقْلِهِ» لقلت أنا: اقْلِهِ تَخْبُرْ.
As-Sayyid ar-Razi says: Some people say that this saying is of the Prophet (p.b.u.h.), but what confirms that it is the saying of Amir al-mu’minin (p.b.u.h.) is the statement related by Tha‘lab from Ibn al-Arabi, that (caliph) al-Ma’mun said, “If Ali had not said ‘ukhbur taqlihi’ (try a man and you will hate him),” I would have said: ‘aqlihi takhbur’ (hate a man in order to try him).”