Asalam el kum
Please tell me in Detail about FITRA . If we do not pay FITRA is it Sin?
الجواب حامدا و مصلیا
Not performing Sadaqa e Fitra while being a Sahib e Nisab is as if leaving a Wajib act which is beyond doubt a Sin. Hence it is necessary for a Sahiib e Nisab to be particular in performing this Wajib.
Allah knows best.