Prayers & Duties >> Taharah (Purity)
Question ID: 158948Country: INDIA
Answer ID: 158948
Bismillah hir-Rahman nir-Rahim !
(Fatwa: 715/522/SN=6/1439)
When there is neither any stain nor any bad smell then it is probable that this is sweat as you also think; hence in the question mentioned above, it is not necessary to wash the underwear. Your salah will also be valid if you offer your salah wearing the underwear without washing it.
Allah (Subhana Wa Ta'ala) knows Best
Darul Ifta,
Darul Uloom Deoband, India