Rules about Performing Salah (Prayer) in an Unclean Cloth Regardless One Knows it or Not

5. Ali ibn Muhammad has narrated from Sahl ibn Ziyad from Khayran al-Khadim who has said the following: “I once wrote to the man عليه السلام, asking him about clothes which come in contact with wine and flesh of pig, if I can perform Salah (prayer) wearing such cloth or not. Our people have differences on the issue. Certain ones say, ‘You can perform Salah (prayer) with it because only drinking is unlawful.’ Certain others say, ‘You must not perform Salah (prayer) wearing them.’ He (the Imam) wrote, ‘You must not perform Salah (prayer) wearing them: it is rijs (filthy).’ I then asked abu ‘Abd Allah عليه السلام, about someone who borrows clothes from one whom he knows consumes al- Jirry (scale-less fish) or drinks wine. He then returns what he has borrowed. Can he perform Salah (prayer) wearing them before washing? He (the Imam) said, ‘He does not perform Salah (prayer) wearing them before washing.’”