الكافي- ط الاسلامية, volume 6, page 442

7. A number of our people have narrated from Sahl ibn Ziyad from Muhammad ibn ‘Isa from Safwan from Yusuf ibn Ibrahim who has said the following: “I once visited abu ‘Abd Allah (a.s.), and I was wearing a Jubbah of silk and al-Taylisan (pallium) of silk. He (the Imam) looked at me and I asked saying, ‘I pray to Allah to keep my soul in service for your cause, I am wearing a Taylisan of silk and a Jubbah of silk, what do you say about them?’ He (the Imam) said, ‘Silk is not unlawful.’ I then said, ‘Its warp is abrisam (silk from silk worm as opposed to that from certain plant fibers or synthetic). He (the Imam) said, ‘Abrisam is not unlawful because when al-Husayn (a.s.), was murdered, he was wearing abrisam and jubbah of silk.’ He (the Imam) then said, ‘Abd Allah ibn al-‘ Abbas was sent to al-Khawarij by ’Amir al-Mu’minin and he stood before them wearing the best of his dresses with the best perfumes and with the best stumper. They said, ‘O ibn al- ‘Abbas you are the best of people to us but you have come wearing the dress of the tyrants and riding the stumper of the tyrants.’ He read to them this verse, ‘Say, who has made unlawful the beauties that Allah has brought out for His servants and the best sustenance.’ So dress up and beautify; Allah is beautiful and He loves beauty but it must be of the lawful ones.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

8. Ali ibn Muhammad ibn Bandar Ahmad ibn abu ‘Abd Allah from Muhammad ibn Ali in a marfu‘ manner has said the following: “Once, Sufyan al-Thawriy passed by Masjid al-Haram (the sacred area) and he saw abu ‘Abd Allah (a.s.), dressed in fine expensive clothes. He decided to meet him (the Imam) and scold him. He went close and said, ‘O son of the Messenger of Allah, the Messenger of Allah did not dress up with this kind of dress, Ali did not dress with this kind of dress nor did any of your ancestors.’ Abu ‘Abd Allah (a.s.), said, ‘The Messenger of Allah (SAW) lived at a time when it was a financially serious and stringent condition. He (the Messenger of Allah) lived according to such conditions but the world thereafter has become financially relaxed. The most deserving in financial opportunities are the virtuous people.’ He (the Imam) then read this verse, ‘Say, who has made unlawful the beautiful things that Allah has brought out for His servants and the fine kinds of means of sustenance.’ (7:32) We are the most deserving of what Allah has granted. However, O Thawriy, what you see I have dressed up with I have done so for people. He (the Imam) pulled his hand to himself and raised the outer layer of his dress. Underneath on his body was a layer of rough textured garment. He (the Imam) said, ‘I wear this for my own soul and what you see (the outer layer) is for people.’ He (the Imam) then raised the outer layer of the garment of Sufyan, which was of rough texture but the layer underneath on his body was of a fine quality. He (the Imam) said, ‘You have dressed up for people with the outer layer and for yourself to enjoy with the fine quality layer underneath.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.