Musnad Ahmad 790:120

Rawh narrated to us, Shu'bah narrated to us, from al-Fudayl ibn Fadalah, a man from Qays, Abu Raja' al-'Utaridi narrated to us, he said: Imran ibn Husayn came out to us, and upon him was a garment of silk (khazz) which we had not seen him wear before that, nor after it. He said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Whoever Allah has bestowed a blessing upon, then Allah loves to see the effect of His blessing upon His creation." Rawh said in Baghdad: "He loves to see the effect of His blessing upon His servant."