It is narrated from Sayyiduna Uqbah bin Amir (may Allah be pleased with him) that a silk farruj was given as a gift to the Messenger of Allah (peace and blessings be upon him). He (peace and blessings be upon him) put it on and prayed in it; then, as soon as he concluded the prayer with the salam, he pulled it off roughly and threw it away. The people said: O Messenger of Allah! You had worn it and prayed in it? He (peace and blessings be upon him) said: "This is not fitting for the God-fearing."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14832