Sayyiduna Imran bin Husayn (may Allah be pleased with him) was at that time wearing a green silk (khazz) wrap that Ziyad had clothed him in. He said: I heard Abu al-Qasim (peace and blessings be upon him) saying: "Indeed, when Allah Almighty bestows a blessing upon a servant, He loves that the trace of that blessing be seen upon him."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15509