Answer:
(Fatwa: 1729/1023/D=1432)
(1) Yes, dam (slaughtering of animal) shall be wajib in nafl tawaf as well.
(2) However, when one does nafl tawaf next day it would become suffice the previous one and dam shall be annulled.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
